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-rw-r--r--phpsec/PHP/Compat/Function/str_split.php59
1 files changed, 59 insertions, 0 deletions
diff --git a/phpsec/PHP/Compat/Function/str_split.php b/phpsec/PHP/Compat/Function/str_split.php
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+++ b/phpsec/PHP/Compat/Function/str_split.php
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+<?php
+/**
+ * Replace str_split()
+ *
+ * @category PHP
+ * @package PHP_Compat
+ * @license LGPL - http://www.gnu.org/licenses/lgpl.html
+ * @copyright 2004-2007 Aidan Lister <aidan@php.net>, Arpad Ray <arpad@php.net>
+ * @link http://php.net/function.str_split
+ * @author Aidan Lister <aidan@php.net>
+ * @version $Revision: 1.1 $
+ * @since PHP 5
+ * @require PHP 4.0.0 (user_error)
+ */
+function php_compat_str_split($string, $split_length = 1)
+{
+ if (!is_scalar($split_length)) {
+ user_error('str_split() expects parameter 2 to be long, ' .
+ gettype($split_length) . ' given', E_USER_WARNING);
+ return false;
+ }
+
+ $split_length = (int) $split_length;
+ if ($split_length < 1) {
+ user_error('str_split() The length of each segment must be greater than zero', E_USER_WARNING);
+ return false;
+ }
+
+ // Select split method
+ if ($split_length < 65536) {
+ // Faster, but only works for less than 2^16
+ preg_match_all('/.{1,' . $split_length . '}/s', $string, $matches);
+ return $matches[0];
+ } else {
+ // Required due to preg limitations
+ $arr = array();
+ $idx = 0;
+ $pos = 0;
+ $len = strlen($string);
+
+ while ($len > 0) {
+ $blk = ($len < $split_length) ? $len : $split_length;
+ $arr[$idx++] = substr($string, $pos, $blk);
+ $pos += $blk;
+ $len -= $blk;
+ }
+
+ return $arr;
+ }
+}
+
+
+// Define
+if (!function_exists('str_split')) {
+ function str_split($string, $split_length = 1)
+ {
+ return php_compat_str_split($string, $split_length);
+ }
+}