php 正则替换函数 ereg_replace

时间：2015-01-23 来源：西部数据作者：西部数据

下面的实例是利用php 正则替换函数 ereg_replace来把指定的字符替换成我想需要的字符实例,代码如下:

$num = 'www.phpfensi.com';

     $string = "this string has four words. <br>";

     $string = ereg_replace ('four', $num, $string);

     echo $string;



     $num = '49';

     $string = "this string has four words";

     $string = ereg_replace ('four', $num, $string);

     echo $string;

   $string ="测试用文字";

   echo "**********$string**********<p>";

   $string = ereg_replace ("^", "<br>", $string);

   $string = ereg_replace ("$", "<br>", $string);

   echo "==========$string==========";

   //开源代码phpfensi.com