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<?php function get_video_block($id) { return "***replacement text for $id***"; } function display_video($text) { return preg_replace_callback( '/\[VIDEO ID=(\d+)]/', function($m) { return get_video_block($m[1]); }, $text ); } echo display_video("Here is a video [VIDEO ID=33] to watch");
Output for git.master_jit, git.master, rfc.property-hooks
Here is a video ***replacement text for 33*** to watch

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