Code Modernization: Replace usage of strpos() with str_starts_with().

`str_starts_with()` was introduced in PHP 8.0 to perform a case-sensitive check indicating if the string to search in (haystack) begins with the given substring (needle).

WordPress core includes a polyfill for `str_starts_with()` on PHP < 8.0 as of WordPress 5.9.

This commit replaces `0 === strpos( ... )` with `str_starts_with()` in core files, making the code more readable and consistent, as well as improving performance.

While `strpos()` is slightly faster than the polyfill on PHP < 8.0, `str_starts_with()` is noticeably faster on PHP 8.0+, as it is optimized to avoid unnecessarily searching along the whole haystack if it does not find the needle.

Follow-up to [52039], [52040], [52326].

Props spacedmonkey, costdev, sabernhardt, mukesh27, desrosj, jorbin, TobiasBg, ayeshrajans, lgadzhev, SergeyBiryukov.
Fixes #58012.

git-svn-id: https://develop.svn.wordpress.org/trunk@55703 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Sergey Biryukov
2023-05-02 15:43:03 +00:00
parent 73dbbe5372
commit 4cb3e1582a
54 changed files with 105 additions and 105 deletions

View File

@@ -1187,7 +1187,7 @@ if ( ! function_exists( 'auth_redirect' ) ) :
// If https is required and request is http, redirect.
if ( $secure && ! is_ssl() && false !== strpos( $_SERVER['REQUEST_URI'], 'wp-admin' ) ) {
if ( 0 === strpos( $_SERVER['REQUEST_URI'], 'http' ) ) {
if ( str_starts_with( $_SERVER['REQUEST_URI'], 'http' ) ) {
wp_redirect( set_url_scheme( $_SERVER['REQUEST_URI'], 'https' ) );
exit;
} else {
@@ -1218,7 +1218,7 @@ if ( ! function_exists( 'auth_redirect' ) ) :
// If the user wants ssl but the session is not ssl, redirect.
if ( ! $secure && get_user_option( 'use_ssl', $user_id ) && false !== strpos( $_SERVER['REQUEST_URI'], 'wp-admin' ) ) {
if ( 0 === strpos( $_SERVER['REQUEST_URI'], 'http' ) ) {
if ( str_starts_with( $_SERVER['REQUEST_URI'], 'http' ) ) {
wp_redirect( set_url_scheme( $_SERVER['REQUEST_URI'], 'https' ) );
exit;
} else {
@@ -1281,7 +1281,7 @@ if ( ! function_exists( 'check_admin_referer' ) ) :
*/
do_action( 'check_admin_referer', $action, $result );
if ( ! $result && ! ( -1 === $action && strpos( $referer, $adminurl ) === 0 ) ) {
if ( ! $result && ! ( -1 === $action && str_starts_with( $referer, $adminurl ) ) ) {
wp_nonce_ays( $action );
die();
}