Serializer.class.php:
<?php
/**
* XOAD Serializer file.
*
* <p>This file defines the {@link XOAD_Serializer} Class.</p>
* <p>Example:</p>
* <code>
* <?php
*
* require_once('xoad.php');
*
* $arr = array(1, 2, "String", array("Nested", 3, 4, array(5, 6)));
*
* ?>
* <script type="text/javascript">
*
* var arr = <?= XOAD_Serializer::serialize($arr) ?>;
*
* </script>
* </code>
*
* @author Stanimir Angeloff
*
* @package XOAD
*
* @version 0.5.0.0
*
*/
/**
* XOAD Serializer Class.
*
* <p>This class is used to serialize a PHP variable
* into a {@link http://www.json.org JSON} string.</p>
* <p>Example:</p>
* <code>
* <?php
*
* require_once('xoad.php');
*
* $arr = array(1, 2, "String", array("Nested", 3, 4, array(5, 6)));
*
* ?>
* <script type="text/javascript">
*
* var arr = <?= XOAD_Serializer::serialize($arr) ?>;
*
* </script>
* </code>
*
* @author Stanimir Angeloff
*
* @package XOAD
*
* @version 0.5.0.0
*
*/
class XOAD_Serializer extends XOAD_Observable
{
/**
* Serializes a PHP variable into a {@link http://www.json.org JSON} string.
*
* <p>Example:</p>
* <code>
* <script type="text/javascript">
* <?php require_once('xoad.php'); ?>
*
* var arr = <?= XOAD_Serializer::serialize(array(1, 2, "string", array("Nested"))) ?>;
*
* alert(arr);
*
* </script>
* </code>
*
* @access public
*
* @param mixed $var Variable to serialize.
*
* @return string {@link http://www.json.org JSON} string that
* represents the variable.
*
* @static
*
*/
function serialize(&$var)
{
$type = XOAD_Utilities::getType($var);
if ($type == 'bool') {
if ($var) {
return "true";
} else {
return "false";
}
} else if ($type == 'int') {
return sprintf('%d', $var);
} else if ($type == 'float') {
return sprintf('%f', $var);
} else if ($type == 'string') {
if (strlen($var) >= strlen(XOAD_SERIALIZER_SKIP_STRING)) {
if (strcasecmp(substr($var, 0, strlen(XOAD_SERIALIZER_SKIP_STRING)), XOAD_SERIALIZER_SKIP_STRING) == 0) {
return substr($var, strlen(XOAD_SERIALIZER_SKIP_STRING), strlen($var) - strlen(XOAD_SERIALIZER_SKIP_STRING));
}
}
// This code is based on morris_hirsch's
// comment in utf8_decode function documentation.
//
// http://bg.php.net/utf8_decode
//
// Thank you.
//
$ascii = '';
$length = strlen($var);
for ($iterator = 0; $iterator < $length; $iterator ++) {
$char = $var{$iterator};
$charCode = ord($char);
if ($charCode == 0x08) {
$ascii .= '\b';
} else if ($charCode == 0x09) {
$ascii .= '\t';
} else if ($charCode == 0x0A) {
$ascii .= '\n';
} else if ($charCode == 0x0C) {
$ascii .= '\f';
} else if ($charCode == 0x0D) {
$ascii .= '\r';
} else if (($charCode == 0x22) || ($charCode == 0x2F) || ($charCode == 0x5C)) {
$ascii .= '\\' . $var{$iterator};
} else if ($charCode < 128) {
$ascii .= $char;
} else if ($charCode >> 5 == 6) {
$byteOne = ($charCode & 31);
$iterator ++;
$char = $var{$iterator};
$charCode = ord($char);
$byteTwo = ($charCode & 63);
$charCode = ($byteOne * 64) + $byteTwo;
$ascii .= sprintf('\u%04s', dechex($charCode));
} else if ($charCode >> 4 == 14) {
$byteOne = ($charCode & 31);
$iterator ++;
$char = $var{$iterator};
$charCode = ord($char);
$byteTwo = ($charCode & 63);
$iterator ++;
$char = $var{$iterator};
$charCode = ord($char);
$byteThree = ($charCode & 63);
$charCode = ((($byteOne * 64) + $byteTwo) * 64) + $byteThree;
$ascii .= sprintf('\u%04s', dechex($charCode));
} else if ($charCode >> 3 == 30) {
$byteOne = ($charCode & 31);
$iterator ++;
$char = $var{$iterator};
$charCode = ord($char);
$byteTwo = ($charCode & 63);
$iterator ++;
$char = $var{$iterator};
$charCode = ord($char);
$byteThree = ($charCode & 63);
$iterator ++;
$char = $var{$iterator};
$charCode = ord($char);
$byteFour = ($charCode & 63);
$charCode = ((((($byteOne * 64) + $byteTwo) * 64) + $byteThree) * 64) + $byteFour;
$ascii .= sprintf('\u%04s', dechex($charCode));
}
}
return ('"' . $ascii . '"');
} else if ($type == 's_array') {
$index = 0;
$length = sizeof($var);
$returnValue = '[';
foreach ($var as $value) {
$returnValue .= XOAD_Serializer::serialize($value);
if ($index < $length - 1) {
$returnValue .= ', ';
}
$index ++;
}
$returnValue .= ']';
return $returnValue;
} else if ($type == 'a_array') {
$index = 0;
$length = sizeof($var);
$returnValue = '{';
foreach ($var as $key => $value) {
$returnValue .= XOAD_Serializer::serialize($key);
$returnValue .= ':';
$returnValue .= XOAD_Serializer::serialize($value);
if ($index < $length - 1) {
$returnValue .= ', ';
}
$index ++;
}
$returnValue .= '}';
return $returnValue;
} else if ($type == 'object') {
$objectVars = get_object_vars($var);
return XOAD_Serializer::serialize($objectVars);
}
return "null";
}
/**
* Adds a {@link XOAD_Serializer} events observer.
*
* @access public
*
* @param mixed $observer The observer object to add (must extend {@link XOAD_Observer}).
*
* @return string true on success, false otherwise.
*
* @static
*
*/
function addObserver(&$observer)
{
return parent::addObserver($observer, 'XOAD_Serializer');
}
/**
*
* @access public
*
* @return bool
*
*/
function notifyObservers($event = 'default', $arg = null)
{
return parent::notifyObservers($event, $arg, 'XOAD_Serializer');
}
}
?>
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