JezK

Edit File: class-html.php

<?php /** * The HTML helpers. * * @since 1.0.0 * @package RankMath * @subpackage RankMath\Helpers * @author RankMath <support@rankmath.com> */ namespace RankMath\Helpers; /** * HTML class. */ class HTML { /** * Extract attributes from a html tag. * * @param string $elem Extract attributes from tag. * * @return array */ public static function extract_attributes( $elem ) { $regex = '#([^\s=]+)\s*=\s*(\'[^<\']*\'|"[^<"]*")#'; preg_match_all( $regex, $elem, $attributes, PREG_SET_ORDER ); $new = []; $remaining = $elem; foreach ( $attributes as $attribute ) { $val = substr( $attribute[2], 1, -1 ); $new[ $attribute[1] ] = $val; $remaining = str_replace( $attribute[0], '', $remaining ); } // Chop off tag name. $remaining = preg_replace( '/<[^\s]+/', '', $remaining, 1 ); // Check for empty attributes without values. $regex = '/([^<][\w\d:_-]+)[\s>]/i'; preg_match_all( $regex, $remaining, $attributes, PREG_SET_ORDER ); foreach ( $attributes as $attribute ) { $new[ trim( $attribute[1] ) ] = null; } return $new; } /** * Generate html attribute string for array. * * @param array $attributes Contains key/value pair to generate a string. * @param string $prefix If you want to append a prefic before every key. * * @return string */ public static function attributes_to_string( $attributes = [], $prefix = '' ) { // Early Bail! if ( empty( $attributes ) ) { return false; } $out = ''; foreach ( $attributes as $key => $value ) { if ( true === $value || false === $value ) { $value = $value ? 'true' : 'false'; } $out .= ' ' . esc_html( $prefix . $key ); if ( null === $value ) { continue; } $out .= sprintf( '="%s"', esc_attr( $value ) ); } return $out; } }