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I apologize as I know very little about Hex but we have a GPS product that we need to send messages to (via UDP data posting) and I need to generate a 2 byte checksum value in PHP and don't know how to proceed.<br />
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The example says the following:<br />
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0x05d8 = CRC-CCITT (24 24 00 11 13 61 23 45 67 8f ff 50 00)<br />
<br />
So, I need a PHP function where I can pass in that value in the parenthesis and get back the 05 D8 (I presume).<br />
<br />
It very well may be that there is a PHP function already to do this.<br />
<br />
Any help is greatly appreciated!<br />
<br />
Thanks!!
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I apologize as I know very little about Hex but we have a GPS product that we need to send messages to (via UDP data posting) and I need to generate a 2 byte checksum value in PHP and don't know how to proceed.

The example says the following:

0x05d8 = CRC-CCITT (24 24 00 11 13 61 23 45 67 8f ff 50 00)

So, I need a PHP function where I can pass in that value in the parenthesis and get back the 05 D8 (I presume).

It very well may be that there is a PHP function already to do this.

Any help is greatly appreciated!

Thanks!!

PHP - Generate Checksum CRC-CCITT

PHP is a widely-used server-side scripting language especially suited for web development, powering tens of millions of sites from Facebook to personal WordPress blogs. PHP is often paired with the MySQL relational database, but includes support for most other mainstream databases. By utilizing different Server APIs, PHP can work on many different web servers as a server-side scripting language.