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PATH: home / letacommog / laperouse / wp-content / plugins / wordpress-seo / inc

<?php
/**
 * WPSEO plugin file.
 *
 * @package WPSEO\Internals
 */

/**
 * Class WPSEO_Validator.
 */
class WPSEO_Validator {

/**
	 * Validates whether the passed variable is a boolean.
	 *
	 * @param mixed $variable The variable to validate.
	 *
	 * @return bool Whether or not the passed variable is a valid boolean.
	 */
	public static function is_boolean( $variable ) {
		if ( is_bool( $variable ) ) {
			return true;
		}

return filter_var( $variable, FILTER_VALIDATE_BOOLEAN, FILTER_NULL_ON_FAILURE ) !== null;
	}

/**
	 * Validates whether the passed variable is a string.
	 *
	 * @param mixed $variable The variable to validate.
	 *
	 * @return bool Whether or not the passed variable is a string.
	 */
	public static function is_string( $variable ) {
		return is_string( $variable );
	}

/**
	 * Validates whether the passed variable is a non-empty string.
	 *
	 * @param mixed $variable The variable to validate.
	 *
	 * @return bool Whether or not the passed value is a non-empty string.
	 */
	public static function is_non_empty_string( $variable ) {
		return self::is_string( $variable ) && $variable !== '';
	}

/**
	 * Validates whether the passed variable is an integer.
	 *
	 * @param mixed $variable The variable to validate.
	 *
	 * @return bool Whether or not the passed variable is an integer.
	 */
	public static function is_integer( $variable ) {
		return filter_var( $variable, FILTER_VALIDATE_INT ) || filter_var( $variable, FILTER_VALIDATE_INT ) === 0;
	}

/**
	 * Determines whether a particular key exists within the passed dataset.
	 *
	 * @param array  $data The dataset to search through.
	 * @param string $key  The key to search for.
	 *
	 * @return bool Whether or not the key exists.
	 */
	public static function key_exists( array $data, $key ) {
		return array_key_exists( $key, $data );
	}
}

[+] ..
[-] class-wpseo-utils.php [edit]
[-] index.php [edit]
[-] wpseo-functions-deprecated.php [edit]
[+] exceptions
[-] health-check-links-table-not-accessible.php [edit]
[-] class-wpseo-image-utils.php [edit]
[-] class-post-type.php [edit]
[-] language-utils.php [edit]
[-] class-wpseo-statistics.php [edit]
[-] class-wpseo-primary-term.php [edit]
[-] interface-wpseo-wordpress-integration.php [edit]
[+] sitemaps
[-] wpseo-non-ajax-functions.php [edit]
[-] class-my-yoast-api-request.php [edit]
[-] health-check-default-tagline.php [edit]
[-] health-check-page-comments.php [edit]
[-] class-wpseo-custom-fields.php [edit]
[-] class-wpseo-custom-taxonomies.php [edit]
[-] class-wpseo-content-images.php [edit]
[-] health-check-postname-permalink.php [edit]
[-] class-wpseo-shortlinker.php [edit]
[-] class-rewrite.php [edit]
[-] class-wpseo-rank.php [edit]
[-] class-wpseo-replace-vars.php [edit]
[-] interface-wpseo-wordpress-ajax-integration.php [edit]
[-] class-wpseo-validator.php [edit]
[-] date-helper.php [edit]
[-] wpseo-functions.php [edit]
[+] options
[-] health-check-ryte.php [edit]
[-] class-upgrade.php [edit]
[-] class-wpseo-features.php [edit]
[-] class-wpseo-installation.php [edit]
[-] class-upgrade-history.php [edit]
[-] class-wpseo-meta.php [edit]
[-] class-wpseo-admin-bar-menu.php [edit]
[-] health-check.php [edit]
[-] class-addon-manager.php [edit]
[-] health-check-curl-version.php [edit]
[-] class-wpseo-replacement-variable.php [edit]