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1.implode();
implode(separator,array): 返回值(string)=array元素+separator。其中separator参数可选,但为向后兼容,一般都带上。
eg:
<?php
$arr = array(‘Hello‘,‘World!‘,‘I‘,‘love‘,‘Shanghai!‘);
echo implode(" ",$arr)."<br>";
echo implode("+",$arr)."<br>";
echo implode("-",$arr)."<br>";
echo implode("X",$arr);
?>
运行结果:
Hello World! I love Shanghai!
Hello+World!+I+love+Shanghai!
Hello-World!-I-love-Shanghai!
HelloXWorld!XIXloveXShanghai!
2.explode()
explode(separator,str,limit):返回值(Array)。
Notice:当limit>0,Array.length=limit;
当limit<0时,Array.length=str.length-1;
当limit=0时,Array.length=1.
eg:
<?php
$str = ‘one,two,three,four‘;
// 零 limit
print_r(explode(‘,‘,$str,0));
// 正的 limit
print_r(explode(‘,‘,$str,2));
// 负的 limit
print_r(explode(‘,‘,$str,-1));
?>
运行结果:
Array ( [0] => one,two,three,four )
Array ( [0] => one [1] => two,three,four )
Array ( [0] => one [1] => two [2] => three )
3.get_include_path()
获取当前默认目录
4.set_include_path()
set_include_path(new_inlcude_path):配置新的路径,使得通过include()函数可以直接访问该路径下的文件,简化了目录计算。
eg:
<?php
set_include_path("Website/");
include("test1.php");
include("test2.php");
include("test3.php");
require("test4.php");
require("test5.php");
?>
5.ob_start()
ob是output buffer的简称。ob_start()用来激活服务器缓冲区。当该函数被调用,除头信息外其余信息均不会输出。
若要输出,则使用相应Flush或bo_end_flush()函数。
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原文地址:http://www.cnblogs.com/ganmy/p/5846997.html