Definition & Usage
The crc32() function calculates a 32-bit CRC (cyclic redundancy checksum) for a string.This function can be used to validate data integrity.The crc32() function returns the crc32 checksum of string as an integer.
Syntax
crc32(str)
Example
The following is an example :-
<!DOCTYPE html>
<html>
<body>
<?php
$str = crc32("Experts PHP!");
printf("%u\n",$str);
?>
</body>
</html>
//Output - 2386188324
Example 2–
<!DOCTYPE html>
<html>
<body>
<?php
$str = crc32("Best Tutorials Website!");
printf("%u\n",$str);
?>
</body>
</html>