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How to filter special symbols in PHP strings

PHP中文网Original: 2016-07-25 08:54:172101browse

PHP字符串特殊符号的过滤方法：

有时候我们会遇到过滤字符串中特殊字符的问题，本文提供了一个处理特殊字符串的方法，可能有遗漏，如果读者发现了可以留言告诉我，谢谢。

function strFilter($str){
    $str = str_replace(&#39;`&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;·&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;~&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;!&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;！&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;@&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;#&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;$&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;￥&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;%&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;^&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;……&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;&&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;*&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;(&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;)&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;（&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;）&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;-&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;_&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;——&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;+&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;=&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;|&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;\\&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;[&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;]&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;【&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;】&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;{&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;}&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;;&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;；&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;:&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;：&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;\&#39;&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;"&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;“&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;”&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;,&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;，&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;<&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;>&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;《&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;》&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;.&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;。&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;/&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;、&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;?&#39;, &#39;&#39;, $str);
    $str = str_replace(&#39;？&#39;, &#39;&#39;, $str);
    return trim($str);
}

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