Print the result of crc32():
The crc32() function calculates a 32-bit CRC (cyclic redundancy checksum) for a string.
This function can be used to validate data integrity.
Tip: To ensure that you get the correct string representation from the crc32() function, you'll need to use the %u formatter of the printf() or sprintf() function. If the %u formatter is not used, the result may display in incorrect and negative numbers.
| Parameter | Description |
|---|---|
| string | Required. The string to be calculated |
| Return Value: | Returns the crc32 checksum of string as an integer |
|---|---|
| PHP Version: | 4+ |
In this example we will print the result of crc32() with and without the "%u" formatter (note that the result is equal):
The output of the code above will be:
In this example we will print the result of crc32() with and without the "%u" formatter (note that the result is not equal):
The output of the code above will be:
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