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Ignore:
Timestamp:
06/22/2023 02:55:47 PM (8 months ago)
Author:
SergeyBiryukov
Message:

Code Modernization: Replace usage of substr() with str_starts_with() and str_ends_with().

str_starts_with() and str_ends_with() were introduced in PHP 8.0 to perform a case-sensitive check indicating if the string to search in (haystack) begins or ends with the given substring (needle).

WordPress core includes a polyfill for these functions on PHP < 8.0 as of WordPress 5.9.

This commit uses str_starts_with() and str_ends_with() in core files where appropriate:

  • $needle === substr( $string, 0, $length ), where $length is the length of $needle, is replaced with str_starts_with( $haystack, $needle ).
  • $needle === substr( $string, $offset ), where $offset is negative and the absolute value of $offset is the length of $needle, is replaced with str_ends_with( $haystack, $needle ).

This aims to make the code more readable and consistent, as well as better aligned with modern development practices.

Follow-up to [52039], [52040], [52326], [55703], [55710], [55987], [55988].

Props Soean, spacedmonkey, Clorith, ocean90, azaozz, sabernhardt, SergeyBiryukov.
Fixes #58220.

File:
1 edited

Legend:

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

    r55988 r55990  
    10801080
    10811081    // It matched a ">" character.
    1082     if ( '<' !== substr( $content, 0, 1 ) ) {
     1082    if ( ! str_starts_with( $content, '<' ) ) {
    10831083        return '&gt;';
    10841084    }
    10851085
    10861086    // Allow HTML comments.
    1087     if ( '<!--' === substr( $content, 0, 4 ) ) {
     1087    if ( str_starts_with( $content, '<!--' ) ) {
    10881088        $content = str_replace( array( '<!--', '-->' ), '', $content );
    10891089        while ( ( $newstring = wp_kses( $content, $allowed_html, $allowed_protocols ) ) != $content ) {
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