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

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`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.
Built from https://develop.svn.wordpress.org/trunk@55990


git-svn-id: http://core.svn.wordpress.org/trunk@55502 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Sergey Biryukov
2023-06-22 14:57:24 +00:00
parent 372d9c07e5
commit 84e9601e5a
42 changed files with 83 additions and 83 deletions
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10
wp-admin/includes/plugin.php
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@@ -294,7 +294,7 @@ function get_plugins( $plugin_folder = '' ) {
if ( $plugins_dir ) {
while ( ( $file = readdir( $plugins_dir ) ) !== false ) {
if ( '.' === substr( $file, 0, 1 ) ) {
if ( str_starts_with( $file, '.' ) ) {
continue;
}
@@ -303,11 +303,11 @@ function get_plugins( $plugin_folder = '' ) {
if ( $plugins_subdir ) {
while ( ( $subfile = readdir( $plugins_subdir ) ) !== false ) {
if ( '.' === substr( $subfile, 0, 1 ) ) {
if ( str_starts_with( $subfile, '.' ) ) {
continue;
}
if ( '.php' === substr( $subfile, -4 ) ) {
if ( str_ends_with( $subfile, '.php' ) ) {
$plugin_files[] = "$file/$subfile";
}
}
@@ -315,7 +315,7 @@ function get_plugins( $plugin_folder = '' ) {
closedir( $plugins_subdir );
}
} else {
if ( '.php' === substr( $file, -4 ) ) {
if ( str_ends_with( $file, '.php' ) ) {
$plugin_files[] = $file;
}
}
@@ -371,7 +371,7 @@ function get_mu_plugins() {
$plugins_dir = @opendir( WPMU_PLUGIN_DIR );
if ( $plugins_dir ) {
while ( ( $file = readdir( $plugins_dir ) ) !== false ) {
if ( '.php' === substr( $file, -4 ) ) {
if ( str_ends_with( $file, '.php' ) ) {
$plugin_files[] = $file;
}
}