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wp_specialchars_decode ›

Since2.8.0
已弃用n/a
› wp_specialchars_decode ( $string, $quote_style = ENT_NOQUOTES )
参数: (2)
  • (string) $string The text which is to be decoded.
    Required: Yes
  • (string|int) $quote_style Optional. Converts double quotes if set to ENT_COMPAT, both single and double if set to ENT_QUOTES or none if set to ENT_NOQUOTES. Also compatible with old _wp_specialchars() values; converting single quotes if set to 'single', double if set to 'double' or both if otherwise set. Default is ENT_NOQUOTES.
    Required: No
    默认: ENT_NOQUOTES
返回:
  • (string) The decoded text without HTML entities.
定义在:
文档:

Converts a number of HTML entities into their special characters.

Specifically deals with: &, <, >, ", and '.

$quote_style can be set to ENT_COMPAT to decode " entities, or ENT_QUOTES to do both " and '. Default is ENT_NOQUOTES where no quotes are decoded.



Related Functions: wp_specialchars, _wp_specialchars, wp_cache_decr, wp_cache_close, wp_cache_delete

源码 

function wp_specialchars_decode( $string, $quote_style = ENT_NOQUOTES ) {
	$string = (string) $string;

	if ( 0 === strlen( $string ) ) {
		return '';
	}

	// Don't bother if there are no entities - saves a lot of processing
	if ( strpos( $string, '&' ) === false ) {
		return $string;
	}

	// Match the previous behaviour of _wp_specialchars() when the $quote_style is not an accepted value
	if ( empty( $quote_style ) ) {
		$quote_style = ENT_NOQUOTES;
	} elseif ( ! in_array( $quote_style, array( 0, 2, 3, 'single', 'double' ), true ) ) {
		$quote_style = ENT_QUOTES;
	}

	// More complete than get_html_translation_table( HTML_SPECIALCHARS )
	$single      = array(
		'&#039;' => '\'',
		'&#x27;' => '\'',
	);
	$single_preg = array(
		'/&#0*39;/'   => '&#039;',
		'/&#x0*27;/i' => '&#x27;',
	);
	$double      = array(
		'&quot;' => '"',
		'&#034;' => '"',
		'&#x22;' => '"',
	);
	$double_preg = array(
		'/&#0*34;/'   => '&#034;',
		'/&#x0*22;/i' => '&#x22;',
	);
	$others      = array(
		'&lt;'   => '<',
		'&#060;' => '<',
		'&gt;'   => '>',
		'&#062;' => '>',
		'&amp;'  => '&',
		'&#038;' => '&',
		'&#x26;' => '&',
	);
	$others_preg = array(
		'/&#0*60;/'   => '&#060;',
		'/&#0*62;/'   => '&#062;',
		'/&#0*38;/'   => '&#038;',
		'/&#x0*26;/i' => '&#x26;',
	);

	if ( $quote_style === ENT_QUOTES ) {
		$translation      = array_merge( $single, $double, $others );
		$translation_preg = array_merge( $single_preg, $double_preg, $others_preg );
	} elseif ( $quote_style === ENT_COMPAT || $quote_style === 'double' ) {
		$translation      = array_merge( $double, $others );
		$translation_preg = array_merge( $double_preg, $others_preg );
	} elseif ( $quote_style === 'single' ) {
		$translation      = array_merge( $single, $others );
		$translation_preg = array_merge( $single_preg, $others_preg );
	} elseif ( $quote_style === ENT_NOQUOTES ) {
		$translation      = $others;
		$translation_preg = $others_preg;
	}

	// Remove zero padding on numeric entities
	$string = preg_replace( array_keys( $translation_preg ), array_values( $translation_preg ), $string );

	// Replace characters according to translation table
	return strtr( $string, $translation );
}