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PHP中str_replace的指定替换次数不生效
- WBOYOriginal
- 2016-06-20 12:29:441195browse
<?php header("Content-Type: text/html; charset=utf-8");$str="hello world he,he,he,he,he,he";echo str_replace("he", "替换", $str,$count=1);?> 指定替换次数为一次, 但是结果是被全部替换, php版本是5.4
回复讨论(解决方案)
你理解错了第四个参数，它是计算一共替换了多少次，而不是限制替换的次数
str_replace("he", "替换", $str,$count);
$count是返回被替换的次数
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