wp-includes/l10n/class-wp-translation-file-php.php:64Outputs or returns a parsable string representation of a variable.
$valuemixedstring private function var_export( $value ): string { if ( ! is_array( $value ) ) { return var_export( $value, true ); } $entries = array(); $is_list = array_is_list( $value ); foreach ( $value as $key => $val ) { $entries[] = $is_list ? $this->var_export( $val ) : var_export( $key, true ) . '=>' . $this->var_export( $val ); } return '[' . implode( ',', $entries ) . ']'; }Introduced in 6.5.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/l10n/class-wp-translation-file-php.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.