* $html returned = ''
*/
public static function insert_html_tag_attributes( $html, array $attr_names_values ) {
foreach ( $attr_names_values as $attr_name => $attr_value ) {
if ( false !== $attr_value && false === strpos( $html, ' ' . $attr_name . '=' ) ) {
$html = preg_replace( '/ *\/?' . '>/', ' ' . $attr_name . '="' . $attr_value . '"$0', $html );
}
}
return $html;
}
public static function mb_convert_encoding_ucs2_utf8( array $match ) {
return mb_convert_encoding( pack( 'H*', $match[ 1 ] ), $to_encoding = 'UTF-8', $from_encoding = 'UCS-2' );
}
public static function mb_decode_numericentity_utf8( array $match ) {
$convmap = array( 0x0, 0x10000, 0, 0xfffff );
return mb_decode_numericentity( $match[ 0 ], $convmap, 'UTF-8' );
}
public static function minify_css( $css_data, $filter_prefix = 'sucom' ) {
if ( ! empty( $css_data ) ) { // Make sure we have something to minify.
$classname = apply_filters( $filter_prefix . '_load_lib', false, 'ext/compressor', 'SuextMinifyCssCompressor' );
if ( 'SuextMinifyCssCompressor' === $classname && class_exists( $classname ) ) {
$css_data = $classname::process( $css_data );
}
}
return $css_data;
}
/*
* Decode Facebook video URLs.
*/
public static function replace_unicode_escape( $str ) {
if ( function_exists( 'mb_convert_encoding' ) ) {
return preg_replace_callback( '/\\\\u([0-9a-f]{4})/i', array( __CLASS__, 'mb_convert_encoding_ucs2_utf8' ), $str );
}
return $str;
}
/*
* Unchecked checkboxes are not submitted, so re-create them based on hidden form values.
*/
public static function restore_checkboxes( $opts ) {
if ( is_array( $opts ) ) { // Just in case.
$checkbox = self::preg_grep_keys( '/^is_checkbox_/', $opts, $invert = false, $replace = '' );
foreach ( $checkbox as $key => $val ) {
if ( ! array_key_exists( $key, $opts ) ) {
$opts[ $key ] = 0; // Add missing checkbox as empty.
}
unset( $opts[ 'is_checkbox_' . $key] );
}
}
return $opts;
}
public static function safe_error_log( $error_msg, $strip_html = false ) {
$ini_safe = array(
'display_errors' => 0,
'log_errors' => 1,
'error_log' => defined( 'WP_DEBUG_LOG' ) && is_string( WP_DEBUG_LOG ) && WP_DEBUG_LOG ?
WP_DEBUG_LOG : WP_CONTENT_DIR . '/debug.log',
);
$ini_orig = array();
foreach ( $ini_safe as $name => $value ) {
$value_orig = ini_get( $name ); // Returns false on failure.
if ( $value !== $value_orig ) {
if ( false !== ini_set( $name, $value ) ) { // Returns false on failure.
$ini_orig[ $name ] = $value_orig;
}
}
}
if ( $strip_html ) {
$error_msg = self::strip_html( $error_msg );
}
/*
* Use error_log() instead of trigger_error() to avoid HTTP 500.
*/
error_log( $error_msg );
foreach ( $ini_orig as $name => $value_orig ) {
/*
* Failed getting the original value.
*/
if ( false === $value_orig ) {
ini_restore( $name );
/*
* PHP does not allow setting an empty 'error_log' when ini_get( 'open_basedir' ) is true.
*/
} elseif ( 'error_log' === $name && empty( $value_orig ) && ini_get( 'open_basedir' ) ) {
ini_restore( $name );
} else ini_set( $name, $value_orig );
}
}
public static function strip_html( $text ) {
/*
* i = Letters in the pattern match both upper and lower case letters.
* s = A dot metacharacter in the pattern matches all characters, including newlines.
* U = Invert greediness of quantifiers, so they are NOT greedy by default, but become greedy if followed by ?.
*
* See http://php.net/manual/en/reference.pcre.pattern.modifiers.php.
*/
$text = self::strip_shortcodes( $text ); // Remove any remaining shortcodes.
$text = preg_replace( '/[\s\n\r]+/s', ' ', $text ); // Put everything on one line.
$text = preg_replace( '/<\?.*\?' . '>/U', ' ', $text ); // Remove php.
$text = preg_replace( '/|