Strips any invalid characters from the query.
Parameters
$query
stringrequired- Query to convert.
Source
protected function strip_invalid_text_from_query( $query ) {
// We don't need to check the collation for queries that don't read data.
$trimmed_query = ltrim( $query, "\r\n\t (" );
if ( preg_match( '/^(?:SHOW|DESCRIBE|DESC|EXPLAIN|CREATE)\s/i', $trimmed_query ) ) {
return $query;
}
$table = $this->get_table_from_query( $query );
if ( $table ) {
$charset = $this->get_table_charset( $table );
if ( is_wp_error( $charset ) ) {
return $charset;
}
// We can't reliably strip text from tables containing binary/blob columns.
if ( 'binary' === $charset ) {
return $query;
}
} else {
$charset = $this->charset;
}
$data = array(
'value' => $query,
'charset' => $charset,
'ascii' => false,
'length' => false,
);
$data = $this->strip_invalid_text( array( $data ) );
if ( is_wp_error( $data ) ) {
return $data;
}
return $data[0]['value'];
}
Changelog
Version | Description |
---|---|
4.2.0 | Introduced. |
User Contributed Notes
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