Make WordPress Core


Ignore:
Timestamp:
05/02/2023 03:43:03 PM (10 months ago)
Author:
SergeyBiryukov
Message:

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.

File:
1 edited

Legend:

Unmodified
Added
Removed
  • trunk/src/wp-includes/class-wp-scripts.php

    r54351 r55703  
    376376        }
    377377
    378         if ( ! preg_match( '|^(https?:)?//|', $src ) && ! ( $this->content_url && 0 === strpos( $src, $this->content_url ) ) ) {
     378        if ( ! preg_match( '|^(https?:)?//|', $src ) && ! ( $this->content_url && str_starts_with( $src, $this->content_url ) ) ) {
    379379            $src = $this->base_url . $src;
    380380        }
     
    703703        }
    704704
    705         if ( 0 === strpos( $src, '/' . WPINC . '/js/l10n' ) ) {
     705        if ( str_starts_with( $src, '/' . WPINC . '/js/l10n' ) ) {
    706706            return false;
    707707        }
    708708
    709709        foreach ( (array) $this->default_dirs as $test ) {
    710             if ( 0 === strpos( $src, $test ) ) {
     710            if ( str_starts_with( $src, $test ) ) {
    711711                return true;
    712712            }
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