This article describes how to replace the content tag of the callback using a regular expression in PHP. it involves related php regular expression matching and replacement techniques, for more information about how to replace the callback content tag with a regular expression in PHP, see the following example. Share it with you for your reference. The specific implementation method is as follows:
Function my_wp_plugin_tag_action ($ content, $ tag, $ function, $ args = FALSE) {// match all regular expressions preg_match_all ($ tag, $ content, $ matches ); if (count ($ matches)> 0) {// filter duplicates $ matches = array_unique ($ matches); // loop through $ tag_results = array (); $ found_tags = array (); foreach ($ matches as $ idx => $ match) {// build arg array $ full_tag = array_shift ($ match); // call function, adding function output and full tag text to replacement array $ tag_results [] = my_wp_plugin_buffer_func ($ function, $ match); $ found_tags [] = $ full_tag ;} // replace all tags with corresponding text $ content = str_replace ($ found_tags, $ tag_results, $ content);} return $ content ;}
I hope this article will help you with php programming.