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Code Modernization: Replace usage of strpos() with str_contains().
`str_contains()` was introduced in PHP 8.0 to perform a case-sensitive check indicating if the string to search in (haystack) contains the given substring (needle). WordPress core includes a polyfill for `str_contains()` on PHP < 8.0 as of WordPress 5.9. This commit replaces `false !== strpos( ... )` with `str_contains()` in core files, making the code more readable and consistent, as well as better aligned with modern development practices. Follow-up to [52039], [52040], [52326], [55703], [55710], [55987]. Props Soean, spacedmonkey, costdev, dingo_d, azaozz, mikeschroder, flixos90, peterwilsoncc, SergeyBiryukov. Fixes #58206. git-svn-id: https://develop.svn.wordpress.org/trunk@55988 602fd350-edb4-49c9-b593-d223f7449a82
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@@ -279,7 +279,7 @@ if ( ! function_exists( 'wp_mail' ) ) :
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if ( ! empty( $tempheaders ) ) {
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// Iterate through the raw headers.
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foreach ( (array) $tempheaders as $header ) {
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if ( strpos( $header, ':' ) === false ) {
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if ( ! str_contains( $header, ':' ) ) {
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if ( false !== stripos( $header, 'boundary=' ) ) {
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$parts = preg_split( '/boundary=/i', trim( $header ) );
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$boundary = trim( str_replace( array( "'", '"' ), '', $parts[1] ) );
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@@ -315,7 +315,7 @@ if ( ! function_exists( 'wp_mail' ) ) :
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}
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break;
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case 'content-type':
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if ( strpos( $content, ';' ) !== false ) {
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if ( str_contains( $content, ';' ) ) {
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list( $type, $charset_content ) = explode( ';', $content );
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$content_type = trim( $type );
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if ( false !== stripos( $charset_content, 'charset=' ) ) {
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@@ -1186,7 +1186,7 @@ if ( ! function_exists( 'auth_redirect' ) ) :
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$secure = apply_filters( 'secure_auth_redirect', $secure );
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// If https is required and request is http, redirect.
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if ( $secure && ! is_ssl() && false !== strpos( $_SERVER['REQUEST_URI'], 'wp-admin' ) ) {
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if ( $secure && ! is_ssl() && str_contains( $_SERVER['REQUEST_URI'], 'wp-admin' ) ) {
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if ( str_starts_with( $_SERVER['REQUEST_URI'], 'http' ) ) {
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wp_redirect( set_url_scheme( $_SERVER['REQUEST_URI'], 'https' ) );
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exit;
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@@ -1217,7 +1217,7 @@ if ( ! function_exists( 'auth_redirect' ) ) :
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do_action( 'auth_redirect', $user_id );
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// If the user wants ssl but the session is not ssl, redirect.
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if ( ! $secure && get_user_option( 'use_ssl', $user_id ) && false !== strpos( $_SERVER['REQUEST_URI'], 'wp-admin' ) ) {
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if ( ! $secure && get_user_option( 'use_ssl', $user_id ) && str_contains( $_SERVER['REQUEST_URI'], 'wp-admin' ) ) {
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if ( str_starts_with( $_SERVER['REQUEST_URI'], 'http' ) ) {
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wp_redirect( set_url_scheme( $_SERVER['REQUEST_URI'], 'https' ) );
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exit;
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