标签：php
PHP数组用array来表示
一下是数组分割小例子：
<?php
$names = array("chenlian", "dahan", "chaochao","caixia", "lifang", "xiaoqiang", "hezhun");
$chunkedNames = array_chunk($names, 2, TRUE);
for($i=0; $i<count($chunkedNames); $i++)
{
for ($j=0; $j<count($chunkedNames[$i]); $j++)
{
echo $i."-".$j.":".$chunkedNames[$i][$i*2+$j];
}
}
$chunkedNames = array_chunk($names, 2, FALSE);
for($i=0; $i<count($chunkedNames); $i++)
{
for ($j=0; $j<count($chunkedNames[$i]); $j++)
{
echo $i."-".$j.":".$chunkedNames[$i][$j];
}
}
?><?php
$names = array("chenlian", "dahan", "chaochao","caixia", "lifang", "xiaoqiang", "hezhun");
$chunkedNames = array_chunk($names, 2, TRUE);
for($i=0; $i<count($chunkedNames); $i++)
{
for ($j=0; $j<count($chunkedNames[$i]); $j++)
{
echo $i."-".$j.":".$chunkedNames[$i][$i*2+$j];
$ret = 0;
echo "<pre>";
print_r($chunkedNames[$i], $ret);
echo "</pre>";
}
}
$mergedNames = array_merge($chunkedNames[0],$chunkedNames[1],$chunkedNames[2],$chunkedNames[3]);
foreach($mergedNames as $one)
{
echo "--".$one;
}
echo "---------------------------<br/>";
$ret = 0;
echo "<pre>";
print_r($mergedNames, $ret);
echo "</pre>";
?><?php
$names = array("chenlian", "dahan", "chaochao","caixia", "lifang", "xiaoqiang", "hezhun");
echo "<br/>nex--".next($names);
echo "<br/>pre--".prev($names);
echo "<br/>next--".next($names);
echo "<br/>next--".next($names);
echo "<br/>cur--".current($names);
echo "<br/>end--".end($names);
echo "<br/>reset--".reset($names);
echo "<br/>cur--".current($names);
?>
<?php
$names = array("chenlian", "dahan", "chaochao","caixia", "lifang", "xiaoqiang", "hezhun");
echo "original<br/>";
foreach($names as $one)
{
echo "---".$one;
}
echo "<br/>";
for($i=0; $i<count($names); $i++)
{
echo "===".$names[$i];
}
echo ksort($names)==TRUE?"TRUE":"FALSE";
echo "<br/>ksort<br/>";
foreach($names as $one)
{
echo "---".$one;
}
echo "<br/>";
for($i=0; $i<count($names); $i++)
{
echo "===".$names[$i];
}
echo sort($names)==TRUE?"TRUE":"FALSE";
echo "<br/>sort<br/>";
foreach($names as $one)
{
echo "---".$one;
}
echo "<br/>";
for($i=0; $i<count($names); $i++)
{
echo "===".$names[$i];
}
echo rsort($names)==TRUE?"TRUE":"FALSE";
echo "<br/>rsort<br/>";
foreach($names as $one)
{
echo "---".$one;
}
echo "<br/>";
for($i=0; $i<count($names); $i++)
{
echo "===".$names[$i];
}
echo asort($names)==TRUE?"TRUE":"FALSE";
echo "<br/>asort<br/>";
foreach($names as $one)
{
echo "---".$one;
}
echo "<br/>";
for($i=0; $i<count($names); $i++)
{
echo "===".$names[$i];
}
echo shuffle($names)==TRUE?"TRUE":"FALSE";
echo "<br/>shuffle<br/>";
foreach($names as $one)
{
echo "---".$one;
}
echo "<br/>";
for($i=0; $i<count($names); $i++)
{
echo "===".$names[$i];
}
echo array_reverse($names, FALSE)==TRUE?"TRUE":"FALSE";
echo "<br/>array_reverse<br/>";
foreach($names as $one)
{
echo "---".$one;
}
echo "<br/>";
for($i=0; $i<count($names); $i++)
{
echo "===".$names[$i];
}
?>五.PHP数据类型是不断变化的
<?php
$names = array("chenlian", "dahan", "chaochao","caixia", "lifang", "xiaoqiang", "hezhun");
$a = "";
$b = 0;
$c = 0.0;
echo gettype($c);
list($a,$b,$c) = $names;
echo "--".$a;
echo "--".$b;
echo "--".$c;
echo gettype($c);
$c = 3;
echo gettype($c);
?>六.快速创建规律数组
<?php $id = range(1,1000,3); echo "<pre>"; print_r($id); echo "</pre>" ?>七.数组进出
<?php
$id = range(1,1000,30);
$val = 0;
array_push($id, 333);
array_push($id, 999);
while(($var = array_pop($id)) != NULL){
echo $var."---cnt:".count($id)."<br/>";
}
?>八.字符串索引之大小写转换
<?php
//字符串索引之大小写转换
$id = range(1, 6);
$id[Hello]="chenlian";
$id = array_change_key_case($id, CASE_UPPER);
foreach($id as $one)
{
echo $one."<br/>";
}
echo $id[HELLO];
?><?php $id = range(1,100); $num = range(56,100); $inted = array_intersect($id, $num); echo "<pre>"; print_r($inted); echo "</pre>"; $inted = array_flip($inted); echo "<pre>"; print_r($inted); echo "</pre>"; ?>
十一.字符串
<?php
$str = "E:\\OpenSource\\WTL75_5333_Final\\AppWizCE\\\\";
$res = explode("\\", $str, 100);
echo "<pre>";
print_r($res);
echo "<pre/>";
echo strcmp("abc", "ABC")."abc ABC"."<br/>";
echo "str_replace".str_replace("abc", "CBA", "hello wbabc abc cba xx")."<br/>";
echo "sprintf:".sprintf("%d,%s", 20.35, "travel china")."<br/>";
echo substr("hello chenlian", 0, 8)."<br/>";
echo "trim hello :".trim(" hello ").":"."<br/>";
echo "strlen(hello world)".strlen("hello world")."<br/>";
echo "strtoupper(abAb)".strtoupper("abAb")."<br/>";echo "<pre>".print_r(str_split("hello world", 2))."</pre>";
?>
文本化html(不再不被html标签含义)
echo htmlentities("<br/>jehello&&");
hash之
<?php
echo md5("hello world")."---".sha1("hello world")."<br/>";
echo md5("hello world")."---".sha1("hello world")."<br/>";
echo md5("hello world")."---".sha1("hello world")."<br/>";
?>
标签：php
原文地址：http://blog.csdn.net/hellochenlian/article/details/43850669
