Coding Standards: Use strict comparison in check_comment().

Follow-up to [1012], [1737], [48121].

Props aristath, poena, afercia, SergeyBiryukov.
See #62279.

git-svn-id: https://develop.svn.wordpress.org/trunk@59957 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/comment.php

@@ -40,7 +40,7 @@ function check_comment( $author, $email, $url, $comment, $user_ip, $user_agent,
 	global $wpdb;
 
 	// If manual moderation is enabled, skip all checks and return false.
-	if ( 1 == get_option( 'comment_moderation' ) ) {
+	if ( '1' === get_option( 'comment_moderation' ) ) {
 		return false;
 	}
 
@@ -126,18 +126,38 @@ function check_comment( $author, $email, $url, $comment, $user_ip, $user_agent,
 	 * as well as whether there are any moderation keywords (if set) present in the author
 	 * email address. If both checks pass, return true. Otherwise, return false.
 	 */
-	if ( 1 == get_option( 'comment_previously_approved' ) ) {
+	if ( '1' === get_option( 'comment_previously_approved' ) ) {
 		if ( 'trackback' !== $comment_type && 'pingback' !== $comment_type && '' !== $author && '' !== $email ) {
 			$comment_user = get_user_by( 'email', wp_unslash( $email ) );
 			if ( ! empty( $comment_user->ID ) ) {
-				$ok_to_comment = $wpdb->get_var( $wpdb->prepare( "SELECT comment_approved FROM $wpdb->comments WHERE user_id = %d AND comment_approved = '1' LIMIT 1", $comment_user->ID ) );
+				$ok_to_comment = $wpdb->get_var(
+					$wpdb->prepare(
+						"SELECT comment_approved
+						FROM $wpdb->comments
+						WHERE user_id = %d
+						AND comment_approved = '1'
+						LIMIT 1",
+						$comment_user->ID
+					)
+				);
 			} else {
 				// expected_slashed ($author, $email)
-				$ok_to_comment = $wpdb->get_var( $wpdb->prepare( "SELECT comment_approved FROM $wpdb->comments WHERE comment_author = %s AND comment_author_email = %s and comment_approved = '1' LIMIT 1", $author, $email ) );
+				$ok_to_comment = $wpdb->get_var(
+					$wpdb->prepare(
+						"SELECT comment_approved
+						FROM $wpdb->comments
+						WHERE comment_author = %s
+						AND comment_author_email = %s
+						AND comment_approved = '1'
+						LIMIT 1",
+						$author,
+						$email
+					)
+				);
 			}
-			if ( ( 1 == $ok_to_comment ) &&
-				( empty( $mod_keys ) || ! str_contains( $email, $mod_keys ) ) ) {
-					return true;
+
+			if ( '1' === $ok_to_comment && ( empty( $mod_keys ) || ! str_contains( $email, $mod_keys ) ) ) {
+				return true;
 			} else {
 				return false;
 			}