php常用自定义函数类下载

https://pan.baidu.com/s/18ZuQm5cx3ynQtQqcQgK0Vw

php 设置字符编码为utf-8

header("Content-Type: text/html;charset=utf-8");

GB2312和utf8相互转换

echo iconv(‘GB2312‘, ‘UTF-8//IGNORE‘, $str);      //将字符串的编码从GB2312转到UTF-8
//ignore的意思是忽略转换时的错误，如果没有ignore参数，所有该字符后面的字符串都无法被保存。
iconv("UTF-8","GB2312//IGNORE",$data);    
print_r(iconv_get_encoding());            //得到当前页面编码信息
// 转码
function gbk($str){return iconv(‘utf-8‘,‘gbk‘,$str);}
function utf8($str){return iconv(‘gbk‘,‘utf-8‘,$str);}

路径格式化(替换双斜线为单斜线)

function path_formate($str){
    return str_replace(‘\\\\‘,‘\\‘,$str);
}

获取当前文件的目录

方法一:
define(‘BASE_PATH‘,rtrim(str_replace(‘\\‘,‘/‘,__DIR__).‘/‘));
方法二:
define(‘BASE_DIR‘, rtrim(str_replace(‘\\‘, ‘/‘, dirname(__FILE__)),‘/‘).‘/‘);

打印输出

function dump($var)
{
    echo ‘<pre>‘;
    print_r($var);
    echo ‘</pre>‘;
}

function vp($var)
{
    echo ‘<pre>‘;
    var_dump($var);
    echo ‘</pre>‘;
}

function dd($var)
{
    echo ‘<pre>‘;
    var_dump($var);
    echo ‘</pre>‘;
    die;
}

api返回信息

/**
*  数据返回
 * @param  [int] $code [结果码 200:正常/4**数据问题/5**服务器问题]
 * @param  [string] $msg  [返回的提示信息]
 * @param  [array]  $data [返回的数据]
 * @return [string]       [最终的json数据]
*/
public function return_msg($code, $msg = ‘‘, $data = []) {
 
    /*********** 组合数据  ***********/
    $return_data[‘code‘] = $code;
    $return_data[‘msg‘]  = $msg;
    $return_data[‘data‘] = $data;
 
    /*********** 返回信息并终止脚本  ***********/
    echo json_encode($return_data,JSON_UNESCAPED_UNICODE);
    die;
}

字符串截取

方法一:

在公共的common.php中

//字符串截取并且超出显示省略号
function subtext($text, $length)
{
if(mb_strlen($text, ‘utf8’) > $length)
return mb_substr($text,0,$length,’utf8′).’ …’;
return $text;
}

在模版中调用则：
{$tops.title | subtext=18}

方法二:

在公共的common.php中

//字符串截取

function cut_str($sourcestr,$cutlength)  

{  

   $returnstr=‘‘;  

   $i=0;  

   $n=0;  

   $str_length=strlen($sourcestr);//字符串的字节数  

   while (($n<$cutlength) and ($i<=$str_length))  

   {  

      $temp_str=substr($sourcestr,$i,1);  

      $ascnum=Ord($temp_str);//得到字符串中第$i位字符的ascii码  

      if ($ascnum>=224)    //如果ASCII位高与224，  

      {  

$returnstr=$returnstr.substr($sourcestr,$i,3); //根据UTF-8编码规范，将3个连续的字符计为单个字符          

         $i=$i+3;            //实际Byte计为3  

         $n++;            //字串长度计1  

      }  

      elseif ($ascnum>=192) //如果ASCII位高与192，  

      {  

         $returnstr=$returnstr.substr($sourcestr,$i,2); //根据UTF-8编码规范，将2个连续的字符计为单个字符  

         $i=$i+2;            //实际Byte计为2  

         $n++;            //字串长度计1  

      }  

      elseif ($ascnum>=65 && $ascnum<=90) //如果是大写字母，  

      {  

         $returnstr=$returnstr.substr($sourcestr,$i,1);  

         $i=$i+1;            //实际的Byte数仍计1个  

         $n++;            //但考虑整体美观，大写字母计成一个高位字符  

      }  

      else                //其他情况下，包括小写字母和半角标点符号，  

      {  

         $returnstr=$returnstr.substr($sourcestr,$i,1);  

         $i=$i+1;            //实际的Byte数计1个  

         $n=$n+0.5;        //小写字母和半角标点等与半个高位字符宽...  

      }  

   }  

         if ($str_length>$i){  

          $returnstr = $returnstr . "...";//超过长度时在尾处加上省略号  

      }  

    return $returnstr;  

} 

在模版中调用则：
{$brand.brand_description|cut_str=###,10}

字符串make_by_id转成makeById

function changestr($string){
    if(!is_string($string)){
        die(‘please input string.‘);
    }
    if(strpos($string,‘_‘)){
        $stringArr=explode(‘_‘,$string);
        $str=‘‘;
        foreach ($stringArr as $v){
            $str .= ucfirst($v);
        }
        return $str;
    }
}

数组 字符串 对象 json格式的字符串互转

/**
 * 对象 转 数组
 *
 * @param object $obj 对象
 * @return array
 */
function object2array(&$object) {
    $object =  json_decode( json_encode( $object),true);
    return  $object;
}


/****对象转json数组格式的字符串*****/
function obj2arr($object) {
    
    $json_object = json_encode($object);
    echo "<pre>";
    var_dump($json_object);die;
    $arr = json_decode($json_object, 1);
    return $arr;
}


/****json转数组*****/
/**
 * [json_to_arr description] json_to_arr 遍历把json转为数组
 * @param  [type]  $jsonstr [description]
 * @return boolean          [description]
 */
 //测试数据:$resp=‘{"jingdong_omnichannel_order_ship_update_responce":{"code":"0","result":"{\\"code\\":\\"400\\",\\"message\\":\\"系统异常:物流组件中为已取消状态\\",\\"success\\":false}"}}‘;

function json_to_arr2($jsonstr)
{
    if (is_string($jsonstr)&&is_array(json_decode($jsonstr, true))) {
        $arr = json_decode($jsonstr, true);
        foreach ($arr as $k => $v) {
            if (is_array($v)) {
                foreach ($v as $kk=>$vv){
                    if(is_string($vv) && is_array(json_decode($vv, true))){
                        $arr[$k][$kk] = json_decode($vv, true);
                    }
                }
            }
            if(is_string($v)&&is_sarray(json_decode($v,true))){
                $arr[$k]=json_decode($v,true);
            }
        }
        return $arr;
    } else {
        die(‘This is not jsonString!‘);
    }
}



/**
 * 数组 转 对象
 *
 * @param array $arr 数组
 * @return object
 */
function array_to_object($arr) {
    if (gettype($arr) != ‘array‘) {
        return;
    }
    foreach ($arr as $k => $v) {
        if (gettype($v) == ‘array‘ || getType($v) == ‘object‘) {
            $arr[$k] = (object)array_to_object($v);
        }
    }
 
    return (object)$arr;
}


$arr = array(
    ‘name‘=>‘haima‘,
    ‘age‘=>32,
    ‘gender‘=>‘nan‘
);
$a=(Object)($arr); //数组转对象
echo ‘<pre>‘;
var_dump($a);

$jsonstring=json_encode($array,JSON_UNESCAPED_UNICODE); //对象转json字符串 不转义中文汉字
echo ‘<pre>‘;
var_dump($jsonstring);

$abj=json_decode($array); //json转对象
$array=json_decode($array,true); //json转数组


echo ‘<pre>‘;
$b=(Array)($a); //对象转数组
var_dump($b);

强制类型转换

/**
 * 强制类型转换
 * @param string $data
 * @param string $type
 * @return mixed
 */
private function typeCast(&$data, $type)
{
    switch (strtolower($type)) {
        // 数组
        case ‘a‘:
            $data = (array) $data;
            break;
        // 数字
        case ‘d‘:
            $data = (int) $data;
            break;
        // 浮点
        case ‘f‘:
            $data = (float) $data;
            break;
        // 布尔
        case ‘b‘:
            $data = (boolean) $data;
            break;
        // 字符串
        case ‘s‘:
        default:
            if (is_scalar($data)) {
                $data = (string) $data;
            } else {
                throw new \InvalidArgumentException(‘variable type error：‘ . gettype($data));
            }
    }
}

php序列化serialize与返回序列化unserialeze

serialize() 把变量和它们的值编码成文本
unserialize() 恢复原先变量

创建日志文件

1. 方法一(适合临时用):

//数组/字符串都可以
file_put_contents( ‘log.log‘, date(‘Y-m-d H:i:s‘,time()) .‘ ‘ . var_export($_REQUEST,true) . "\r\n", FILE_APPEND);

1. 方法二:

例: /www.wdmcake.com/data/log/日期/$file文件名

/**
*$str array/str 要写入的内容
*$dir str 日期文件夹里面的新建的文件夹名字  例如 /www.wdmcake.com/data/log/201806/sms_apiaas
*$file string 文件的名字 例:send_log_20180628.log
*/
function wdmlog($str,$dir=‘log‘,$file=‘log‘)
{
    if (!file_exists(ROOT_PATH . ‘data/log/‘ . date(‘Ym‘). ‘/‘ . $dir))
    {
        make_dir(ROOT_PATH . ‘data/log/‘ . date(‘Ym‘). ‘/‘ . $dir);
    }
    $str = is_array($str) ? var_export($str,true):$str;
       file_put_contents(ROOT_PATH . ‘data/log/‘ . date(‘Ym‘). ‘/‘ . $dir.‘/‘ . $file .‘_‘ . date(‘Ymd‘) . ‘.log‘, local_date(‘Y-m-d H:i:s‘) .‘ ‘ . $str . "\r\n", FILE_APPEND);
}    

1. 方法三:

function create_log($data,$merchant,$agency,$file=‘‘)
{
   if(empty($merchant)) die("商户code不可为空");
   if(empty($agency)) die("平台code不可为空");
   $file_path = ROOT_PATH . ‘logdata/‘.$merchant.‘/‘.$agency;
   if(!is_dir($file_path)){
        mkdir($file_path, 0777, true); 
    }    
    file_put_contents($file_path.‘/‘.$agency.‘_‘ . $file . date(‘Ymd‘,time()) . ‘.log‘, date(‘Y-m-d H:i:s‘,time()) .‘ ‘ . var_export($data,true) . "\r\n", FILE_APPEND);
}

返回二维数组其中一段的数据

/**
 * [slice description] 返回二维数组其中一段的数据
 * @param  [type] $arr [description] 传二维关联数组
 * @param  [type] $star [description] 截取的开始位置
 * @param  [type] $length [description] 截取的长度
 * @param  [type] $order [description] 0顺序 -1倒序
 * @param  [type] $preserve [description] 保持索引关系 true - 保留键名 false - 默认。重置键名
 * @return [type]      [description]
 */
function slice($arr, $star, $length, $order = 0, $preserve = false)
{
    foreach ($arr as $key => $value) {
        $arr[$key] = array_slice($value, $star, $length, $preserve);
    }
    if ($order) {
        return array_reverse($arr);
    }
    return $arr;
}

例子:

<?php
header(‘Content-Type=text/html;charset:utf8‘);
$arr = array(
    [
        ‘id‘ => ‘1‘,
        ‘name‘ => ‘李四‘,
        ‘age‘ => ‘21‘,
        ‘gender‘ => ‘男‘,
    ],
    [
        ‘id‘ => ‘2‘,
        ‘name‘ => ‘王五‘,
        ‘age‘ => ‘22‘,
        ‘gender‘ => ‘男‘,
    ],

);

echo ‘<pre>‘;
print_r(slice($arr, 0, 2));

//打印:
// 打印结果:
// Array
// (
//     [0] => Array
//         (
//             [id] => 1
//             [name] => 李四
//         )

//     [1] => Array
//         (
//             [id] => 2
//             [name] => 王五
//         )

// )

获取ip地址

1. 方法一

$_SERVER[‘REMOTE_ADDR‘]

1. 方法二

    /** 
     * 获得访问的IP 
     * Enter description here ... 
     */  
    function getIP() {  
        return isset($_SERVER["HTTP_X_FORWARDED_FOR"])?$_SERVER["HTTP_X_FORWARDED_FOR"]  
        :(isset($_SERVER["HTTP_CLIENT_IP"])?$_SERVER["HTTP_CLIENT_IP"]  
        :$_SERVER["REMOTE_ADDR"]);  
    } 

1. 方法三

/**
 * 获得用户的真实IP地址
 *
 * @access  public
 * @return  string
 */
function real_ip()
{
    static $realip = NULL;

    if ($realip !== NULL)
    {
        return $realip;
    }

    if (isset($_SERVER))
    {
        if (isset($_SERVER[‘HTTP_X_FORWARDED_FOR‘]))
        {
            $arr = explode(‘,‘, $_SERVER[‘HTTP_X_FORWARDED_FOR‘]);

            /* 取X-Forwarded-For中第一个非unknown的有效IP字符串 */
            foreach ($arr AS $ip)
            {
                $ip = trim($ip);

                if ($ip != ‘unknown‘)
                {
                    $realip = $ip;

                    break;
                }
            }
        }
        elseif (isset($_SERVER[‘HTTP_CLIENT_IP‘]))
        {
            $realip = $_SERVER[‘HTTP_CLIENT_IP‘];
        }
        else
        {
            if (isset($_SERVER[‘REMOTE_ADDR‘]))
            {
                $realip = $_SERVER[‘REMOTE_ADDR‘];
            }
            else
            {
                $realip = ‘0.0.0.0‘;
            }
        }
    }
    else
    {
        if (getenv(‘HTTP_X_FORWARDED_FOR‘))
        {
            $realip = getenv(‘HTTP_X_FORWARDED_FOR‘);
        }
        elseif (getenv(‘HTTP_CLIENT_IP‘))
        {
            $realip = getenv(‘HTTP_CLIENT_IP‘);
        }
        else
        {
            $realip = getenv(‘REMOTE_ADDR‘);
        }
    }

    preg_match("/[\d\.]{7,15}/", $realip, $onlineip);
    $realip = !empty($onlineip[0]) ? $onlineip[0] : ‘0.0.0.0‘;

    return $realip;
}

PHP限制IP访问 只允许指定IP访问 允许*号通配符过滤IP

/** 
 * 检测访问的ip是否为规定的允许的ip 
 * Enter description here ... 
 */  
function check_ip(){  
    $ALLOWED_IP=array(‘192.168.2.*‘,‘127.0.0.1‘,‘192.168.2.49‘);  
    $IP=getIP();  
    $check_ip_arr= explode(‘.‘,$IP);//要检测的ip拆分成数组  
    #限制IP  
    if(!in_array($IP,$ALLOWED_IP)) {  
        foreach ($ALLOWED_IP as $val){  
            if(strpos($val,‘*‘)!==false){//发现有*号替代符  
                 $arr=array();//  
                 $arr=explode(‘.‘, $val);  
                 $bl=true;//用于记录循环检测中是否有匹配成功的  
                 for($i=0;$i<4;$i++){  
                    if($arr[$i]!=‘*‘){//不等于*  就要进来检测，如果为*符号替代符就不检查  
                        if($arr[$i]!=$check_ip_arr[$i]){  
                            $bl=false;  
                            break;//终止检查本个ip 继续检查下一个ip  
                        }  
                    }  
                 }//end for   
                 if($bl){//如果是true则找到有一个匹配成功的就返回  
                    return;  
                    die;  
                 }  
            }  
        }//end foreach  
        header(‘HTTP/1.1 403 Forbidden‘);  
        echo "Access forbidden";  
        die;  
    }  
}  

获取地址路径里0到第一个\线的部分

function f_dirname($f_path){
    return substr($f_path,0,strrpos($f_path,‘\\‘));
}

获取当前文件所在的文件路径

define(‘CUR_API_PATH‘, rtrim(str_replace(‘\\‘, ‘/‘, dirname(__FILE__)),‘/‘).‘/‘);

获取随机字符串

/**
 * 随机字符
 * @param int $length 长度
 * @param string $type 类型
 * @param int $convert 转换大小写 1大写 0小写
 * @return string
 */
function random($length=10, $type=‘letter‘, $convert=0)
{
    $config = array(
        ‘number‘=>‘1234567890‘,
        ‘letter‘=>‘abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ‘,
        ‘string‘=>‘abcdefghjkmnpqrstuvwxyzABCDEFGHJKMNPQRSTUVWXYZ23456789‘,
        ‘all‘=>‘abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890‘
    );

    if(!isset($config[$type])) $type = ‘letter‘;
    $string = $config[$type];

    $code = ‘‘;
    $strlen = strlen($string) -1;
    for($i = 0; $i < $length; $i++){
        $code .= $string{mt_rand(0, $strlen)};
    }
    if(!empty($convert)){
        $code = ($convert > 0)? strtoupper($code) : strtolower($code);
    }
    return $code;
}

中文字符串反转

检查目标文件夹是否存在，如果不存在则自动创建该目录

/**
 * 检查目标文件夹是否存在，如果不存在则自动创建该目录
 *
 * @access      public
 * @param       string      folder     目录路径。不能使用相对于网站根目录的URL
 *
 * @return      bool
 */
function make_dir($folder)
{
    $reval = false;

    if (!file_exists($folder))
    {
        /* 如果目录不存在则尝试创建该目录 */
        @umask(0);

        /* 将目录路径拆分成数组 */
        preg_match_all(‘/([^\/]*)\/?/i‘, $folder, $atmp);

        /* 如果第一个字符为/则当作物理路径处理 */
        $base = ($atmp[0][0] == ‘/‘) ? ‘/‘ : ‘‘;

        /* 遍历包含路径信息的数组 */
        foreach ($atmp[1] AS $val)
        {
            if (‘‘ != $val)
            {
                $base .= $val;

                if (‘..‘ == $val || ‘.‘ == $val)
                {
                    /* 如果目录为.或者..则直接补/继续下一个循环 */
                    $base .= ‘/‘;

                    continue;
                }
            }
            else
            {
                continue;
            }

            $base .= ‘/‘;

            if (!file_exists($base))
            {
                /* 尝试创建目录，如果创建失败则继续循环 */
                if (@mkdir(rtrim($base, ‘/‘), 0777))
                {
                    @chmod($base, 0777);
                    $reval = true;
                }
            }
        }
    }
    else
    {
        /* 路径已经存在。返回该路径是不是一个目录 */
        $reval = is_dir($folder);
    }

    clearstatcache();

    return $reval;
}

默认获得文件修改时间

function filetime($way,$char=‘m‘){
    date_default_timezone_set(‘PRC‘);
    switch($char){
        case ‘c‘:$localtime = date(‘Y-m-d H:i:s‘,filectime($way));
        break;
        case ‘m‘:$localtime = date(‘Y-m-d H:i:s‘,filemtime($way));
        break;
        case ‘a‘:$localtime = date(‘Y-m-d H:i:s‘,fileatime($way));
        break;
    }
    return $localtime;
}

判断后缀类型

function suffixtype($f_path){
    $info = pathinfo($f_path);
    $f_type = ‘file‘;
    switch(strtolower(@$info["extension"])){
        case ‘jpg‘:case ‘jpeg‘:case ‘gif‘:
        case ‘png‘:case ‘bmp‘:$f_type = ‘image‘;break;
        case ‘pl‘:case ‘c‘:case ‘cpp‘:case ‘log‘:case ‘asp‘:case ‘php‘:case ‘jsp‘:case ‘txt‘:case ‘xml‘:case ‘html‘:case ‘htm‘:case ‘phtml‘:case ‘jhtml‘:case ‘java‘:case ‘cfg‘:case ‘ini‘:
        case ‘text‘:case ‘bat‘:$f_type = ‘text‘;break;
    }
    return $f_type;
}

检查文件类型

/**
 * 检查文件类型
 *
 * @access      public
 * @param       string      filename            文件名
 * @param       string      realname            真实文件名
 * @param       string      limit_ext_types     允许的文件类型
 * @return      string
 */
function check_file_type($filename, $realname = ‘‘, $limit_ext_types = ‘‘)
{
    if ($realname)
    {
        $extname = strtolower(substr($realname, strrpos($realname, ‘.‘) + 1));
    }
    else
    {
        $extname = strtolower(substr($filename, strrpos($filename, ‘.‘) + 1));
    }

    if ($limit_ext_types && stristr($limit_ext_types, ‘|‘ . $extname . ‘|‘) === false)
    {
        return ‘‘;
    }

    $str = $format = ‘‘;

    $file = @fopen($filename, ‘rb‘);
    if ($file)
    {
        $str = @fread($file, 0x400); // 读取前 1024 个字节
        @fclose($file);
    }
    else
    {
        if (stristr($filename, ROOT_PATH) === false)
        {
            if ($extname == ‘jpg‘ || $extname == ‘jpeg‘ || $extname == ‘gif‘ || $extname == ‘png‘ || $extname == ‘doc‘ ||
                $extname == ‘xls‘ || $extname == ‘txt‘  || $extname == ‘zip‘ || $extname == ‘rar‘ || $extname == ‘ppt‘ ||
                $extname == ‘pdf‘ || $extname == ‘rm‘   || $extname == ‘mid‘ || $extname == ‘wav‘ || $extname == ‘bmp‘ ||
                $extname == ‘swf‘ || $extname == ‘chm‘  || $extname == ‘sql‘ || $extname == ‘cert‘|| $extname == ‘pptx‘ || 
                $extname == ‘xlsx‘ || $extname == ‘docx‘)
            {
                $format = $extname;
            }
        }
        else
        {
            return ‘‘;
        }
    }

    if ($format == ‘‘ && strlen($str) >= 2 )
    {
        if (substr($str, 0, 4) == ‘MThd‘ && $extname != ‘txt‘)
        {
            $format = ‘mid‘;
        }
        elseif (substr($str, 0, 4) == ‘RIFF‘ && $extname == ‘wav‘)
        {
            $format = ‘wav‘;
        }
        elseif (substr($str ,0, 3) == "\xFF\xD8\xFF")
        {
            $format = ‘jpg‘;
        }
        elseif (substr($str ,0, 4) == ‘GIF8‘ && $extname != ‘txt‘)
        {
            $format = ‘gif‘;
        }
        elseif (substr($str ,0, 8) == "\x89\x50\x4E\x47\x0D\x0A\x1A\x0A")
        {
            $format = ‘png‘;
        }
        elseif (substr($str ,0, 2) == ‘BM‘ && $extname != ‘txt‘)
        {
            $format = ‘bmp‘;
        }
        elseif ((substr($str ,0, 3) == ‘CWS‘ || substr($str ,0, 3) == ‘FWS‘) && $extname != ‘txt‘)
        {
            $format = ‘swf‘;
        }
        elseif (substr($str ,0, 4) == "\xD0\xCF\x11\xE0")
        {   // D0CF11E == DOCFILE == Microsoft Office Document
            if (substr($str,0x200,4) == "\xEC\xA5\xC1\x00" || $extname == ‘doc‘)
            {
                $format = ‘doc‘;
            }
            elseif (substr($str,0x200,2) == "\x09\x08" || $extname == ‘xls‘)
            {
                $format = ‘xls‘;
            } elseif (substr($str,0x200,4) == "\xFD\xFF\xFF\xFF" || $extname == ‘ppt‘)
            {
                $format = ‘ppt‘;
            }
        } elseif (substr($str ,0, 4) == "PK\x03\x04")
        {
            if (substr($str,0x200,4) == "\xEC\xA5\xC1\x00" || $extname == ‘docx‘)
            {
                $format = ‘docx‘;
            }
            elseif (substr($str,0x200,2) == "\x09\x08" || $extname == ‘xlsx‘)
            {
                $format = ‘xlsx‘;
            } elseif (substr($str,0x200,4) == "\xFD\xFF\xFF\xFF" || $extname == ‘pptx‘)
            {
                $format = ‘pptx‘;
            }else
            {
                $format = ‘zip‘;
            }
        } elseif (substr($str ,0, 4) == ‘Rar!‘ && $extname != ‘txt‘)
        {
            $format = ‘rar‘;
        } elseif (substr($str ,0, 4) == "\x25PDF")
        {
            $format = ‘pdf‘;
        } elseif (substr($str ,0, 3) == "\x30\x82\x0A")
        {
            $format = ‘cert‘;
        } elseif (substr($str ,0, 4) == ‘ITSF‘ && $extname != ‘txt‘)
        {
            $format = ‘chm‘;
        } elseif (substr($str ,0, 4) == "\x2ERMF")
        {
            $format = ‘rm‘;
        } elseif ($extname == ‘sql‘)
        {
            $format = ‘sql‘;
        } elseif ($extname == ‘txt‘)
        {
            $format = ‘txt‘;
        }
    }

    if ($limit_ext_types && stristr($limit_ext_types, ‘|‘ . $format . ‘|‘) === false)
    {
        $format = ‘‘;
    }

    return $format;
}

获取文件后缀名,并判断是否在定义的数组中

/**
 * 获取文件后缀名,并判断是否合法
 *
 * @param string $file_name //是一个文件的路径
 * @param array $allow_type //需要的文件类型数组
 * @return blob
 */
function get_file_suffix($file_name, $allow_type = array())
{
    $file_suffix = strtolower(array_pop(explode(‘.‘, $file_name)));
    if (empty($allow_type))
    {
        return $file_suffix;
    }
    else
    {
        if (in_array($file_suffix, $allow_type))
        {
            return true;
        }
        else
        {
            return false;
        }
    }
}

判断路径是文件还是目录

function f_type($f_path){
    return is_dir($f_path)?‘dir‘:suffixtype($f_path);
}

计算文件或目录字节大小

//计算文件或目录字节大小
function bytesize_calc($f_path){
    if(!is_dir($f_path)){
        return sprintf("%u", filesize($f_path));}
    $bytesize = 0;
    $f_arr = scandir($f_path);
    $size = count($f_arr);
    for($i=0;$i<$size;$i++){
        if(‘.‘==$f_arr[$i]||‘..‘==$f_arr[$i])continue;
        $file_or_dir = $f_path.‘/‘.$f_arr[$i];
        $bytesize += bytesize_calc($file_or_dir);
    }
    return $bytesize;
}
//获得文件大小
function f_size($f_path){
    return size_formate(bytesize_calc($f_path));
}

接收异步过来的get消息

    $sms_result_data = $_GET;   //用这种
    $param = request()->param(); //thinkphp5接收消息
    $sms_result_data1 = file_get_contents("php://input");

curl之get请求

function _curl_get($urldata)
{
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL,$urldata);
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);//不验证SSL证书。
    $data = curl_exec($ch);
    curl_close($ch);
    if ($data)
        return $data;
    else
        return false;
}

curl之post请求

如果是有图片要上传加下面用这行代码

curl_file_create(ROOT_PATH.‘public‘.$value["goods_img"]);

/**
 * [post description]
 * @param  [type]  $url       [请求的url]
 * @param  string  $post_data [请求的数据]
 * @param  integer $timeout   [请求超时时间]
 * @return [type]  $Mix     [混合数据json|array|obj]
 */
function post($url, $post_data = ‘‘, $timeout = 3000)
{
    header("Content-type:text/html;charset=utf-8");
    $ch = curl_init();
    curl_setopt ($ch, CURLOPT_URL, $url);
    curl_setopt ($ch, CURLOPT_POST, 1);
    curl_setopt ($ch, CURLOPT_POSTFIELDS, $post_data);
    curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
    curl_setopt($ch, CURLOPT_HEADER, false);
    $file_contents = curl_exec($ch);
    curl_close($ch); 
    if ($content){
        return $file_contents;
    }else{
        return false;
    }       
}

curl之post_get请求

如果是有图片要上传加下面用这行代码

curl_file_create(ROOT_PATH.‘public‘.$value["goods_img"]);

1. 方法一

/**
 * [_curl_post_get description]
 * 如果$data为空转为get请求.https不验证证书
 * @param  [type]  $url     [url]
 * @param  array   $data    [要传的数据]
 * @param  integer $timeout [设置请求超时的时间]
 * @return [type]  $Mix     [混合数据json|array|obj]
 */
function _curl_post($url, $data = ‘‘,$timeout = 3000) {
    header("Content-type:text/html;charset=utf-8");
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);  //请求的url
    curl_setopt($ch, CURLOPT_HEADER, false);  ////是否携带head头信息 ture / error
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);  //返回数据还是打印数据 0,直接输出 1,返回
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout); //设置请求超时的时间
    // https请求 不验证证书和hosts方法:
    if (strlen($url) > 5 && strtolower(substr($url, 0, 5)) == "https")
    //if (1 == strpos("$".$url, "https://")) //效果同上面
    {
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); 
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
    }
    if(!empty($post_data)){
        curl_setopt($ch, CURLOPT_POST,1); //设置post方式请求,如果不写默认为get方式
        curl_setopt($ch, CURLOPT_POSTFIELDS,$data); //要传递的参数
    }       

    //发送请求 并接收数据赋值给$data
    $data = curl_exec($ch);  
    //关闭请求资源
    curl_close($ch);   
    $content = iconv(‘gb2312‘, ‘utf-8//IGNORE‘,$data); //修改字符编码

    if ($content)
        return $content;
    else
        return false;
}

1. 方法二

/**
 * curl访问
 * @author rainfer <81818832@qq.com>
 * @param  string $url
 * @param string $type
 * @param boolean $data
 * @param string $err_msg
 * @param int $timeout
 * @param array $cert_info
 * @return string
 */
function go_curl($url, $type, $data = false, &$err_msg = null, $timeout = 20, $cert_info = array())
{
    $type = strtoupper($type);
    if ($type == ‘GET‘ && is_array($data)) {
        $data = http_build_query($data);
    }
    $option = array();
    if ( $type == ‘POST‘ ) {
        $option[CURLOPT_POST] = 1;
    }
    if ($data) {
        if ($type == ‘POST‘) {
            $option[CURLOPT_POSTFIELDS] = $data;
        } elseif ($type == ‘GET‘) {
            $url = strpos($url, ‘?‘) !== false ? $url.‘&‘.$data :  $url.‘?‘.$data;
        }
    }
    $option[CURLOPT_URL]            = $url;
    $option[CURLOPT_FOLLOWLOCATION] = TRUE;
    $option[CURLOPT_MAXREDIRS]      = 4;
    $option[CURLOPT_RETURNTRANSFER] = TRUE;
    $option[CURLOPT_TIMEOUT]        = $timeout;
    //设置证书信息
    if(!empty($cert_info) && !empty($cert_info[‘cert_file‘])) {
        $option[CURLOPT_SSLCERT]       = $cert_info[‘cert_file‘];
        $option[CURLOPT_SSLCERTPASSWD] = $cert_info[‘cert_pass‘];
        $option[CURLOPT_SSLCERTTYPE]   = $cert_info[‘cert_type‘];
    }
    //设置CA
    if(!empty($cert_info[‘ca_file‘])) {
        // 对认证证书来源的检查，0表示阻止对证书的合法性的检查。1需要设置CURLOPT_CAINFO
        $option[CURLOPT_SSL_VERIFYPEER] = 1;
        $option[CURLOPT_CAINFO] = $cert_info[‘ca_file‘];
    } else {
        // 对认证证书来源的检查，0表示阻止对证书的合法性的检查。1需要设置CURLOPT_CAINFO
        $option[CURLOPT_SSL_VERIFYPEER] = 0;
    }
    $ch = curl_init();
    curl_setopt_array($ch, $option);
    $response = curl_exec($ch);
    $curl_no  = curl_errno($ch);
    $curl_err = curl_error($ch);
    curl_close($ch);
    // error_log
    if($curl_no > 0) {
        if($err_msg !== null) {
            $err_msg = ‘(‘.$curl_no.‘)‘.$curl_err;
        }
    }
    return $response;
}

1. 方法三

//curl模拟post发送请求
function curl_sent($url, $postFields = null)
{
    $header = array(
            // ‘Content-Type: application/json‘,
            ‘Content-Type: application/x-www-form-urlencoded‘
    );
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
    curl_setopt($ch, CURLOPT_FAILONERROR, false);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    // https 请求
    if (strlen($url) > 5 && strtolower(substr($url, 0, 5)) == "https")
    {
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
    }

    if (is_array($postFields) && 0 < count($postFields))
    {
        curl_setopt($ch, CURLOPT_POST, true);
        $postMultipart = false;
        foreach ($postFields as $k => $v)
        {
            if (‘@‘ == substr($v, 0, 1))
            {
                $postMultipart = true;
                break;
            }
        }
        unset($k, $v);
        if ($postMultipart) {
            curl_setopt($ch, CURLOPT_POSTFIELDS, $postFields);
        } else {
            curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($postFields));
        }
    }
    $reponse = curl_exec($ch);

    if (curl_errno($ch))
    {
        throw new JosSdkException(curl_error($ch), 0);
    } else {
        $httpStatusCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        if (200 !== $httpStatusCode)
        {
            throw new JosSdkException($reponse, $httpStatusCode);
        }
    }
    curl_close($ch);
    return $reponse;
}

方法四**:

    public $connectTimeout = 0;

    public $readTimeout = 0;
    public function curl($url, $postFields = null)
    {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_FAILONERROR, false);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        if ($this->readTimeout) {
            curl_setopt($ch, CURLOPT_TIMEOUT, $this->readTimeout);
        }
        if ($this->connectTimeout) {
            curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $this->connectTimeout);
        }
        //https 请求
        if(strlen($url) > 5 && strtolower(substr($url,0,5)) == "https" ) {
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
            curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
        }

        if (is_array($postFields) && 0 < count($postFields))
        {
            $postBodyString = "";
            $postMultipart = false;
            foreach ($postFields as $k => $v)
            {
                if("@" != substr($v, 0, 1))//判断是不是文件上传
                {
                    $postBodyString .= "$k=" . urlencode($v) . "&"; 
                }
                else//文件上传用multipart/form-data，否则用www-form-urlencoded
                {
                    $postMultipart = true;
                }
            }
            unset($k, $v);
            curl_setopt($ch, CURLOPT_POST, true);
            if ($postMultipart)
            {
                curl_setopt($ch, CURLOPT_POSTFIELDS, $postFields);
            }
            else
            {
                curl_setopt($ch, CURLOPT_POSTFIELDS, substr($postBodyString,0,-1));
            }
        }
        $reponse = curl_exec($ch);
        $reponse = iconv(‘gb2312‘, ‘utf-8//IGNORE‘,$reponse); //修改字符编码
        create_log(‘第‘.__LINE__.‘行‘, ‘wdm‘, ‘jdomnic‘, ‘curl‘);
        create_log($reponse, ‘wdm‘, ‘jdomnic‘, ‘curl‘);
        if (curl_errno($ch))
        {
            throw new Exception(curl_error($ch),0);
        }
        else
        {
            $httpStatusCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
            if (200 !== $httpStatusCode)
            {
                throw new Exception($reponse,$httpStatusCode);
            }
        }
        curl_close($ch);
        return $reponse;
    }

判断数组类型参数是否含有空元素值

//$param array
function is_arraynull($param){
    if(!is_array($param)){
        return ‘0‘;
    }else{
        foreach ($param as $key => $value) {
            if($value!=‘‘){
                $ret = is_arraynull($value);
            }else{
                return  1;
            }
        }
    }
}

判断是否传入必要参数

  /**
   * 判断是否传入必要参数
   * @param  [type] $inter_param [description]
   * @param  [type] $agency      [description]
   * @param  [type] $merchant    [description]
   * @return [type]              [description]
   */
  function judge_parameter($param){
            if(!isset($param[‘inter_param‘]) || !isset($param[‘agency‘]) || !isset($param[‘merchant‘])){
                return false;
            }
            if(empty($param[‘inter_param‘]) || empty($param[‘agency‘]) || empty($param[‘merchant‘])){
                return false;
            }
            return true;
  }

PHP常用的自定义函数

标签：div   array   rar   字符串反转   数字   Fix   blob   strlen   ESS   

原文地址：https://www.cnblogs.com/xssz/p/11620738.html