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Database: Check if the $args[0] value exists in wpdb::prepare() before accessing it.

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This avoids an `Undefined array key 0` PHP warning if no values are passed to the method besides the query string.

Follow-up to [41470].

Props mjaschen.
Fixes #54453.

git-svn-id: https://develop.svn.wordpress.org/trunk@52206 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Sergey Biryukov 2021-11-18 14:35:22 +00:00
parent 041171cf83
commit 47d8c7313e
1 changed files with 1 additions and 1 deletions
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src/wp-includes/wp-db.php
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@ -1395,7 +1395,7 @@ class wpdb {
// If args were passed as an array (as in vsprintf), move them up.
$passed_as_array = false;
if ( is_array( $args[0] ) && count( $args ) === 1 ) {
if ( isset( $args[0] ) && is_array( $args[0] ) && 1 === count( $args ) ) {
$passed_as_array = true;
$args = $args[0];
}