What are the potential security risks of using the haval256,5 cryptographic hash function in PHP?

One potential security risk of using the haval256,5 cryptographic hash function in PHP is its vulnerability to collision attacks, where two different inputs produce the same hash value. To mitigate this risk, it is recommended to use more secure and widely-accepted hash functions like SHA-256 instead.

// Using the SHA-256 hash function instead of haval256,5
$hash = hash('sha256', $data);