Wordpress- Contact form 7 : Validate comma separated urls

Question: How we can validate comma separated urls in for Contact form 7 plugin?

Answer: We can do this with contact form 7 filter.

For Example:

- If in form field is -

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1	[textarea* yoururls]

- If we will put the url comma seperated .

- We can use below filter to custom validation in functions.php

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add_filter( 'wpcf7_validate_textarea*', 'function_validate_urls', 20, 2 ); function function_validate_urls( $result, $tag ) {     if ( 'yoururls' == $tag->name ) {         $yoururls = isset( $_POST['yoururls'] ) ? trim( $_POST['yoururls'] ) : '';         $error='noerror';         $sepurl = explode(",",$yoururls);         foreach($sepurl as $sep){              $sep = preg_replace('/\s+/', '', $sep);             if($sep!=''){                 if (filter_var($sep, FILTER_VALIDATE_URL)) {                    // valid                 } else {                     //invalid                     $error= 'error';                 }             }         }         if ( $error == 'error' ) {            $result->invalidate( $tag, "Please check all urls in exact format." );            // $result->invalidate( $tag, $error );         }     }       return $result; }