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php和editplus正则表达式去除空白行_php技巧

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Release： 2016-05-16 20:17:27
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去除字符串内部的空行：

复制代码 代码如下:

$str = preg_replace("/(\s*?\r?\n\s*?)+/","\n",$str);

去除全部的空行，包括内部和头尾：
复制代码 代码如下:

$str = preg_replace('/($\s*$)|(^\s*^)/m', '',$str);

editplus中替换空白行的正则表达式：

正则表达式：^[\t\n ]*\n

Related labels：
editplus php regular expression
source：php.cn
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