w3resource

PHP: crc32() function

Description

The crc32() function generates a 32-bit cyclic redundancy code (CRC) for a string.

The function is generally used to validate the integrity of data being transmitted.

Version:

(PHP 4 and above)

Syntax:

crc32(string_data)

Parameter:

Name Description Required /
Optional
Type
string_data The string data. Required String

Return values

The crc32 checksum of string_data.

Value Type: Integer.

Pictorial Presentation

php-string-crc32()

Example:

<?php
$crc_string = crc32('Good Morning...');
printf('%u', $crc_string);
?>

Output:

1329844137 

View the example in the browser

See also

PHP Function Reference

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Next: crypt



PHP: Tips of the Day

PHP: How to write to the console in PHP?

Firefox

On Firefox you can use an extension called FirePHP which enables the logging and dumping of information from your PHP applications to the console. This is an addon to the awesome web development extension Firebug.

  • http://www.studytrails.com/blog/using-firephp-in-firefox-to-debug-php/

Chrome

However if you are using Chrome there is a PHP debugging tool called Chrome Logger or webug (webug has problems with the order of logs).

More recently Clockwork is in active development which extends the Developer Tools by adding a new panel to provide useful debugging and profiling information. It provides out of the box support for Laravel 4 and Slim 2 and support can be added via its extensible API.

Using Xdebug

A better way to debug your PHP would be via Xdebug. Most browsers provide helper extensions to help you pass the required cookie/query string to initialize the debugging process.

  • Chrome - Xdebug Helper
  • Firefox - The easiest Xdebug
  • Opera - Xdebug
  • Safari - Xdebug Toggler

Ref : https://bit.ly/3ck9rFg