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<?php
class Penci_AMP_WP_Utils {
/**
* wp_parse_url in < WordPress 4.7 does not respect the component arg, so we're adding this helper so we can use it.
*
* This can be removed once 4.8 is out and we bump up our min supported WP version.
*/
public static function parse_url( $url, $component = -1 ) {
$parsed = wp_parse_url( $url, $component );
// Because < 4.7 always returned a full array regardless of component
if ( -1 !== $component && is_array( $parsed ) ) {
return self::_get_component_from_parsed_url_array( $parsed, $component );
}
return $parsed;
}
/**
* Included for 4.6 back-compat
*
* Copied from https://developer.wordpress.org/reference/functions/_get_component_from_parsed_url_array/
*/
protected static function _get_component_from_parsed_url_array( $url_parts, $component = -1 ) {
if ( -1 === $component ) {
return $url_parts;
}
$key = self::_wp_translate_php_url_constant_to_key( $component );
if ( false !== $key && is_array( $url_parts ) && isset( $url_parts[ $key ] ) ) {
return $url_parts[ $key ];
}
return null;
}
/**
* Included for 4.6 back-compat
*
* Copied from https://developer.wordpress.org/reference/functions/_wp_translate_php_url_constant_to_key/
*/
protected static function _wp_translate_php_url_constant_to_key( $constant ) {
$translation = array(
PHP_URL_SCHEME => 'scheme',
PHP_URL_HOST => 'host',
PHP_URL_PORT => 'port',
PHP_URL_USER => 'user',
PHP_URL_PASS => 'pass',
PHP_URL_PATH => 'path',
PHP_URL_QUERY => 'query',
PHP_URL_FRAGMENT => 'fragment',
);
if ( isset( $translation[ $constant ] ) ) {
return $translation[ $constant ];
}
return false;
}
}
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