php教程 正则替换函数 ereg_replace
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。
*/
    

$num = 'www.php100.com';
     $string = "this string has four words.
";
     $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**********

";
   $string = ereg_replace ("^", "
", $string);
   $string = ereg_replace ("$", "
", $string);
   echo "==========$string==========";

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