: str_replace(): Passing null to parameter #2 ($replace) of type array|string is deprecated in
function update_icl_strings_charset_and_collations() {
$charset = 'CHARACTER SET ' . $wpdb->charset;
if ( method_exists( $wpdb, 'has_cap' ) && $wpdb->has_cap( 'collation' ) && ! empty( $wpdb->collate ) ) {
$collate .= 'COLLATE ' . $wpdb->collate;
$sql_template = "ALTER TABLE `{$wpdb->prefix}icl_strings` MODIFY `%s` VARCHAR(%d) {$charset} {$collate}";
'name' => WPML_STRING_TABLE_NAME_CONTEXT_LENGTH,
'context' => WPML_STRING_TABLE_NAME_CONTEXT_LENGTH,
'domain_name_context_md5' => 32,
foreach ( $fields as $field => $size ) {
$sql = sprintf( $sql_template, $field, $size );
if ( $wpdb->query( $sql ) === false ) {
throw new Exception( $wpdb->last_error );
update_icl_strings_charset_and_collations();