WPDB: Fall back to the connection charset when sanity checking strings.
If `DB_CHARSET` isn't defined (or is empty), `wpdb::$charset` will be empty, too. `wpdb::strip_invalid_text()` assumes that it isn't empty, however, so we need to fall back to the connection character set when we're running our sanity checks. Fixes #34708. Built from https://develop.svn.wordpress.org/trunk@35655 git-svn-id: http://core.svn.wordpress.org/trunk@35619 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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@ -4,7 +4,7 @@
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*
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* @global string $wp_version
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*/
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$wp_version = '4.4-beta4-35654';
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$wp_version = '4.4-beta4-35655';
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/**
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* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
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@ -2811,11 +2811,21 @@ class wpdb {
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$charset = $value['charset'];
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}
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if ( $this->charset ) {
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$connection_charset = $this->charset;
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} else {
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if ( $this->use_mysqli ) {
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$connection_charset = mysqli_character_set_name( $this->dbh );
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} else {
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$connection_charset = mysql_client_encoding();
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}
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}
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if ( is_array( $value['length'] ) ) {
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$queries[ $col ] = $this->prepare( "CONVERT( LEFT( CONVERT( %s USING $charset ), %.0f ) USING {$this->charset} )", $value['value'], $value['length']['length'] );
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$queries[ $col ] = $this->prepare( "CONVERT( LEFT( CONVERT( %s USING $charset ), %.0f ) USING $connection_charset )", $value['value'], $value['length']['length'] );
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} else if ( 'binary' !== $charset ) {
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// If we don't have a length, there's no need to convert binary - it will always return the same result.
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$queries[ $col ] = $this->prepare( "CONVERT( CONVERT( %s USING $charset ) USING {$this->charset} )", $value['value'] );
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$queries[ $col ] = $this->prepare( "CONVERT( CONVERT( %s USING $charset ) USING $connection_charset )", $value['value'] );
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}
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unset( $data[ $col ]['db'] );
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