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<?php |
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|
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namespace Elementor\Modules\AtomicWidgets\Utils; |
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|
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; // Exit if accessed directly. |
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} |
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|
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class Format_Element_Ids { |
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public static function format( array $elements, array $path ): array { |
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return array_map( function( $element ) use ( $path ) { |
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$origin_id = $element['id']; |
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$nesting_path = [ ...$path, $origin_id ]; |
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|
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$element['id'] = self::hash_string( implode( '_', $nesting_path ), 7 ); |
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$element['origin_id'] = $origin_id; |
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$element['elements'] = self::format( $element['elements'] ?? [], $nesting_path ); |
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|
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return $element; |
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}, $elements ); |
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} |
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|
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/** |
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* Deterministic djb2-based hash kept in sync with the TypeScript implementation |
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* in @elementor/utils (packages/packages/libs/utils/src/hash.ts) so that inner |
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* element ids are consistent between the PHP render and the editor's JS layer. |
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* |
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* @param string $str String to hash. |
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* @param int|null $length Optional desired output length. |
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* @return string Base-36, lowercase, padded to $length when provided. |
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*/ |
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public static function hash_string( string $str, ?int $length ): string { |
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$hash_basis = 5381; |
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|
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$i = strlen( $str ); |
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while ( $i > 0 ) { |
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--$i; |
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$hash_basis = ( $hash_basis * 33 ) ^ ord( $str[ $i ] ); |
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// Keep hash within 32-bit range to match JavaScript bitwise operations. |
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$hash_basis = $hash_basis & 0xFFFFFFFF; |
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} |
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|
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$result = base_convert( (string) $hash_basis, 10, 36 ); |
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|
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if ( ! isset( $length ) ) { |
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return $result; |
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} |
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|
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$sliced = substr( $result, -$length ); |
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return str_pad( $sliced, $length, '0', STR_PAD_LEFT ); |
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} |
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} |
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|
