WP_Image_Editor::make_image( string $filename, callable $callback, array $arguments ): bool

Source

protected function make_image( $filename, $callback, $arguments ) {
	$stream = wp_is_stream( $filename );
	if ( $stream ) {
		ob_start();
	} else {
		// The directory containing the original file may no longer exist when using a replication plugin.
		wp_mkdir_p( dirname( $filename ) );
	}

	$result = call_user_func_array( $callback, $arguments );

	if ( $result && $stream ) {
		$contents = ob_get_contents();

		$fp = fopen( $filename, 'w' );

		if ( ! $fp ) {
			ob_end_clean();
			return false;
		}

		fwrite( $fp, $contents );
		fclose( $fp );
	}

	if ( $stream ) {
		ob_end_clean();
	}

	return $result;
}

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