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This article mainly shows you "php regular how to remove js", the content is easy to understand, clear, hope to help you solve doubts, the following let the editor lead you to study and learn "php regular how to remove js" this article.

Php regular removal of js methods: 1, to create a PHP sample file; 2, the use of php in the preg_replace regular matching function to filter out the js code in the web page.

This article operating environment: Windows7 system, PHP7.1, Dell G3 computer.

Php uses regular substitution to filter out js (script) code

Use the preg_replace regular matching function in php to filter out the js code in the web page. The fourth parameter in preg_replace () indicates the number of replacements. The default is-1, which means all replacements. If you only want to replace it twice, you can write it as preg_replace.

Matching rules cannot be used "/"

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