(PHP Extension) Convert String to GSM 03.38

Demonstrates how to convert a string to the GSM character set. For more information about the GSM character set, see GSM Character Set

Note: This example requires Chilkat v9.5.0.79 or greater. Support for the GSM character set was added in v9.5.0.79.

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<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

// Demonstrates how to convert a string to the GSM character set byte representation.

$s = 'support@chilkatsoft.com, {abc}';

// In the above string the a-z letters have the same 1-byte values in the GSM character set.
// The '@' character is the 0x00 byte in GSM.
// The curly brace chars are 2-bytes each in GSM -- each beginning with the 0x1B escape char.
// The '.', ' ', and ',' are the same in GSM as us-ascii.

// Let's convert to GSM.

// bdGsm will contain the GSM bytes.
$bdGsm = new CkBinData();

// Append the string to bdGsm.  The 2nd arg "gsm" tells AppendString to
// convert the incoming string to the gsm byte representation.
$success = $bdGsm->AppendString($s,'gsm');

// Let's examine what we have in hex:
print $bdGsm->getEncoded('hex') . "\n";

// The result is:  737570706F7274006368696C6B6174736F66742E636F6D2C201B286162631B29

// Save the GSM bytes to a file.
$success = $bdGsm->WriteFile('qa_output/gsm.txt');

?>