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Source View: sanitize_key

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Line Code
925  * @since 3.0.0
926  *
927  * @param string $key String key
928  * @return string Sanitized key
929  */
930 function sanitize_key( $key ) {
931      $raw_key = $key;
932      $key = strtolower( $key );
933      $key = preg_replace( '/[^a-z0-9_\-]/', '', $key );
934      return apply_filters( 'sanitize_key', $key, $raw_key );
935 }
936
937 /**
938  * Sanitizes a title, or returns a fallback title.
939  *
940  * Specifically, HTML and PHP tags are stripped. Further actions can be added
941  * via the plugin API. If $title is empty and $fallback_title is set, the latter
942  * will be used.
943  *