file_is_valid_image() – Function | Developer.WordPress.org

file_is_valid_image( string $path ): bool

Validates that file is an image.

Parameters

bool True if valid image, false if not valid image.

function file_is_valid_image( $path ) {
	$size = wp_getimagesize( $path );
	return ! empty( $size );
}

Uses	Description
wp_getimagesize()`wp-includes/media.php`	Allows PHP’s getimagesize() to be debuggable when necessary.

Version	Description
2.5.0	Introduced.

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