File "Helper.php"
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<?php
// phpcs:ignoreFile
/**
* Facebook for WooCommerce.
*/
namespace WooCommerce\Facebook\Framework;
defined( 'ABSPATH' ) or exit;
/**
* Facebook Helper Class
* The purpose of this class is to centralize common utility functions.
*/
class Helper {
/** encoding used for mb_*() string functions */
const MB_ENCODING = 'UTF-8';
/** String manipulation functions (all multi-byte safe) ***************/
/**
* Returns true if the haystack string starts with needle
*
* Note: case-sensitive
*
* @since 2.2.0
* @param string $haystack
* @param string $needle
* @return bool
*/
public static function str_starts_with( $haystack, $needle ) {
if ( self::multibyte_loaded() ) {
if ( '' === $needle ) {
return true;
}
return 0 === mb_strpos( $haystack, $needle, 0, self::MB_ENCODING );
} else {
$needle = self::str_to_ascii( $needle );
if ( '' === $needle ) {
return true;
}
return 0 === strpos( self::str_to_ascii( $haystack ), self::str_to_ascii( $needle ) );
}
}
/**
* Return true if the haystack string ends with needle
*
* Note: case-sensitive
*
* @since 2.2.0
* @param string $haystack
* @param string $needle
* @return bool
*/
public static function str_ends_with( $haystack, $needle ) {
if ( '' === $needle ) {
return true;
}
if ( self::multibyte_loaded() ) {
return mb_substr( $haystack, -mb_strlen( $needle, self::MB_ENCODING ), null, self::MB_ENCODING ) === $needle;
} else {
$haystack = self::str_to_ascii( $haystack );
$needle = self::str_to_ascii( $needle );
return substr( $haystack, -strlen( $needle ) ) === $needle;
}
}
/**
* Returns true if the needle exists in haystack
*
* Note: case-sensitive
*
* @since 2.2.0
* @param string $haystack
* @param string $needle
* @return bool
*/
public static function str_exists( $haystack, $needle ) {
if ( self::multibyte_loaded() ) {
if ( '' === $needle ) {
return false;
}
return false !== mb_strpos( $haystack, $needle, 0, self::MB_ENCODING );
} else {
$needle = self::str_to_ascii( $needle );
if ( '' === $needle ) {
return false;
}
return false !== strpos( self::str_to_ascii( $haystack ), self::str_to_ascii( $needle ) );
}
}
/**
* Truncates a given $string after a given $length if string is longer than
* $length. The last characters will be replaced with the $omission string
* for a total length not exceeding $length
*
* @since 2.2.0
* @param string $string text to truncate
* @param int $length total desired length of string, including omission
* @param string $omission omission text, defaults to '...'
* @return string
*/
public static function str_truncate( $string, $length, $omission = '...' ) {
if ( self::multibyte_loaded() ) {
// bail if string doesn't need to be truncated
if ( mb_strlen( $string, self::MB_ENCODING ) <= $length ) {
return $string;
}
$length -= mb_strlen( $omission, self::MB_ENCODING );
return mb_substr( $string, 0, $length, self::MB_ENCODING ) . $omission;
} else {
$string = self::str_to_ascii( $string );
// bail if string doesn't need to be truncated
if ( strlen( $string ) <= $length ) {
return $string;
}
$length -= strlen( $omission );
return substr( $string, 0, $length ) . $omission;
}
}
/**
* Returns a string with all non-ASCII characters removed. This is useful
* for any string functions that expect only ASCII chars and can't
* safely handle UTF-8. Note this only allows ASCII chars in the range
* 33-126 (newlines/carriage returns are stripped)
*
* @since 2.2.0
* @param string $string string to make ASCII
* @return string
*/
public static function str_to_ascii( $string ) {
// Strip ASCII chars 32 and under
$string = preg_replace( '/[\x00-\x1F]/', '', $string );
// Strip ASCII chars 127 and higher
return preg_replace( '/[\x7F-\xFF]/', '', $string );
}
/**
* Helper method to check if the multibyte extension is loaded, which
* indicates it's safe to use the mb_*() string methods
*
* @since 2.2.0
* @return bool
*/
protected static function multibyte_loaded() {
return extension_loaded( 'mbstring' );
}
/** Array functions ***************************************************/
/**
* Insert the given element after the given key in the array
*
* Sample usage:
*
* given
*
* array( 'item_1' => 'foo', 'item_2' => 'bar' )
*
* array_insert_after( $array, 'item_1', array( 'item_1.5' => 'w00t' ) )
*
* becomes
*
* array( 'item_1' => 'foo', 'item_1.5' => 'w00t', 'item_2' => 'bar' )
*
* @since 2.2.0
* @param array $array array to insert the given element into
* @param string $insert_key key to insert given element after
* @param array $element element to insert into array
* @return array
*/
public static function array_insert_after( Array $array, $insert_key, Array $element ) {
$new_array = [];
foreach ( $array as $key => $value ) {
$new_array[ $key ] = $value;
if ( $insert_key == $key ) {
foreach ( $element as $k => $v ) {
$new_array[ $k ] = $v;
}
}
}
return $new_array;
}
/** Number helper functions *******************************************/
/**
* Format a number with 2 decimal points, using a period for the decimal
* separator and no thousands separator.
*
* Commonly used for payment gateways which require amounts in this format.
*
* @since 3.0.0
* @param float $number
* @return string
*/
public static function number_format( $number ) {
return number_format( (float) $number, 2, '.', '' );
}
/** WooCommerce helper functions **************************************/
/**
* Safely gets a value from $_POST.
*
* If the expected data is a string also trims it.
*
* @since 5.5.0
*
* @param string $key posted data key
* @param int|float|array|bool|null|string $default default data type to return (default empty string)
* @return int|float|array|bool|null|string posted data value if key found, or default
*/
public static function get_posted_value( $key, $default = '' ) {
$value = $default;
if ( isset( $_POST[ $key ] ) ) {
$sanitized_value = wc_clean( wp_unslash( $_POST[ $key ] ) );
$value = is_string( $sanitized_value ) ? trim( $sanitized_value ) : $sanitized_value;
}
return $value;
}
/**
* Safely gets a value from $_REQUEST.
*
* If the expected data is a string also trims it.
*
* @since 5.5.0
*
* @param string $key posted data key
* @param int|float|array|bool|null|string $default default data type to return (default empty string)
* @return int|float|array|bool|null|string posted data value if key found, or default
*/
public static function get_requested_value( $key, $default = '' ) {
$value = $default;
if ( isset( $_REQUEST[ $key ] ) ) {
$sanitized_value = wc_clean( wp_unslash( $_REQUEST[ $key ] ) );
$value = is_string( $sanitized_value ) ? trim( $sanitized_value ) : $sanitized_value;
}
return $value;
}
/**
* Get the count of notices added, either for all notices (default) or for one
* particular notice type specified by $notice_type.
*
* WC notice functions are not available in the admin
*
* @since 3.0.2
* @param string $notice_type The name of the notice type - either error, success or notice. [optional]
* @return int
*/
public static function wc_notice_count( $notice_type = '' ) {
if ( function_exists( 'wc_notice_count' ) ) {
return wc_notice_count( $notice_type );
}
return 0;
}
/**
* Add and store a notice.
*
* WC notice functions are not available in the admin
*
* @since 3.0.2
* @param string $message The text to display in the notice.
* @param string $notice_type The singular name of the notice type - either error, success or notice. [optional]
*/
public static function wc_add_notice( $message, $notice_type = 'success' ) {
if ( function_exists( 'wc_add_notice' ) ) {
wc_add_notice( $message, $notice_type );
}
}
/**
* Print a single notice immediately
*
* WC notice functions are not available in the admin
*
* @since 3.0.2
* @param string $message The text to display in the notice.
* @param string $notice_type The singular name of the notice type - either error, success or notice. [optional]
*/
public static function wc_print_notice( $message, $notice_type = 'success' ) {
if ( function_exists( 'wc_print_notice' ) ) {
wc_print_notice( $message, $notice_type );
}
}
/**
* Gets the current WordPress site name.
*
* This is helpful for retrieving the actual site name instead of the
* network name on multisite installations.
*
* @since 4.6.0
* @return string
*/
public static function get_site_name() {
return ( is_multisite() ) ? get_blog_details()->blogname : get_bloginfo( 'name' );
}
/** Misc functions ****************************************************/
/**
* Gets the WordPress current screen.
*
* @see get_current_screen() replacement which is always available, unlike the WordPress core function
*
* @since 5.4.2
*
* @return \WP_Screen|null
*/
public static function get_current_screen() {
global $current_screen;
return $current_screen ?: null;
}
/**
* Checks if the current screen matches a specified ID.
*
* This helps avoiding using the get_current_screen() function which is not always available,
* or setting the substitute global $current_screen every time a check needs to be performed.
*
* @since 5.4.2
*
* @param string $id id (or property) to compare
* @param string $prop optional property to compare, defaults to screen id
* @return bool
*/
public static function is_current_screen( $id, $prop = 'id' ) {
global $current_screen;
return isset( $current_screen->$prop ) && $id === $current_screen->$prop;
}
/**
* Determines if the current request is for a WC REST API endpoint.
*
* @see \WooCommerce::is_rest_api_request()
*
* @since 5.9.0
*
* @return bool
*/
public static function is_rest_api_request() {
if ( is_callable( 'WC' ) && is_callable( [ WC(), 'is_rest_api_request' ] ) ) {
return (bool) WC()->is_rest_api_request();
}
if ( empty( $_SERVER['REQUEST_URI'] ) || ! function_exists( 'rest_get_url_prefix' ) ) {
return false;
}
$rest_prefix = trailingslashit( rest_get_url_prefix() );
$is_rest_api_request = false !== strpos( wc_clean( wp_unslash( $_SERVER['REQUEST_URI'] ) ), $rest_prefix );
/* applies WooCommerce core filter */
return (bool) apply_filters( 'woocommerce_is_rest_api_request', $is_rest_api_request );
}
}