Home >Backend Development >PHP Tutorial >PHP implements replacement of callback content tags through regular expressions_PHP tutorial
This article describes the example of PHP implementing the replacement of callback content tags through regular expressions. Share it with everyone for your reference. The specific implementation method is as follows:
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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; } |