diff options
| author | Derek Allard <derek.allard@ellislab.com> | 2008-01-18 20:41:32 +0100 |
|---|---|---|
| committer | Derek Allard <derek.allard@ellislab.com> | 2008-01-18 20:41:32 +0100 |
| commit | 3d879d529107c0c9d3f1e6b894d9ed17b6e6c54f (patch) | |
| tree | 4807d948cd652645031f75a14bc4b82840c99edd /system/helpers/string_helper.php | |
| parent | 4a9cb96df665485c1f5d0d98cd4723d4e2f45ce8 (diff) | |
ExpressionEngine Dev Team in credit
Diffstat (limited to 'system/helpers/string_helper.php')
| -rw-r--r-- | system/helpers/string_helper.php | 245 |
1 files changed, 244 insertions, 1 deletions
diff --git a/system/helpers/string_helper.php b/system/helpers/string_helper.php index 765e1648f..6f9491bb7 100644 --- a/system/helpers/string_helper.php +++ b/system/helpers/string_helper.php @@ -1 +1,244 @@ -<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
/**
* CodeIgniter
*
* An open source application development framework for PHP 4.3.2 or newer
*
* @package CodeIgniter
* @author Rick Ellis
* @copyright Copyright (c) 2006, EllisLab, Inc.
* @license http://www.codeigniter.com/user_guide/license.html
* @link http://www.codeigniter.com
* @since Version 1.0
* @filesource
*/
// ------------------------------------------------------------------------
/**
* CodeIgniter String Helpers
*
* @package CodeIgniter
* @subpackage Helpers
* @category Helpers
* @author Rick Ellis
* @link http://www.codeigniter.com/user_guide/helpers/string_helper.html
*/
// ------------------------------------------------------------------------
/**
* Trim Slashes
*
* Removes any leading/traling slashes from a string:
*
* /this/that/theother/
*
* becomes:
*
* this/that/theother
*
* @access public
* @param string
* @return string
*/
function trim_slashes($str)
{
return trim($str, '/');
}
// ------------------------------------------------------------------------
/**
* Strip Slashes
*
* Removes slashes contained in a string or in an array
*
* @access public
* @param mixed string or array
* @return mixed stering or array
*/
function strip_slashes($str)
{
if (is_array($str))
{
foreach ($str as $key => $val)
{
$str[$key] = strip_slashes($val);
}
}
else
{
$str = stripslashes($str);
}
return $str;
}
// ------------------------------------------------------------------------
/**
* Strip Quotes
*
* Removes single and double quotes from a string
*
* @access public
* @param string
* @return string
*/
function strip_quotes($str)
{
return str_replace(array('"', "'"), '', $str);
}
// ------------------------------------------------------------------------
/**
* Quotes to Entities
*
* Converts single and double quotes to entities
*
* @access public
* @param string
* @return string
*/
function quotes_to_entities($str)
{
return str_replace(array("\'","\"","'",'"'), array("'",""","'","""), $str);
}
// ------------------------------------------------------------------------
/**
* Reduce Double Slashes
*
* Converts double slashes in a string to a single slash,
* except those found in http://
*
* http://www.some-site.com//index.php
*
* becomes:
*
* http://www.some-site.com/index.php
*
* @access public
* @param string
* @return string
*/
function reduce_double_slashes($str)
{
return preg_replace("#([^:])//+#", "\\1/", $str);
}
// ------------------------------------------------------------------------
/**
* Reduce Multiples
*
* Reduces multiple instances of a particular character. Example:
*
* Fred, Bill,, Joe, Jimmy
*
* becomes:
*
* Fred, Bill, Joe, Jimmy
*
* @access public
* @param string
* @param string the character you wish to reduce
* @param bool TRUE/FALSE - whether to trim the character from the beginning/end
* @return string
*/
function reduce_multiples($str, $character = ',', $trim = FALSE)
{
$str = preg_replace('#'.preg_quote($character, '#').'{2,}#', $character, $str);
if ($trim === TRUE)
{
$str = trim($str, $character);
}
return $str;
}
// ------------------------------------------------------------------------
/**
* Create a Random String
*
* Useful for generating passwords or hashes.
*
* @access public
* @param string type of random string. Options: alunum, numeric, nozero, unique
* @param integer number of characters
* @return string
*/
function random_string($type = 'alnum', $len = 8)
{
switch($type)
{
case 'alnum' :
case 'numeric' :
case 'nozero' :
switch ($type)
{
case 'alnum' : $pool = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
break;
case 'numeric' : $pool = '0123456789';
break;
case 'nozero' : $pool = '123456789';
break;
}
$str = '';
for ($i=0; $i < $len; $i++)
{
$str .= substr($pool, mt_rand(0, strlen($pool) -1), 1);
}
return $str;
break;
case 'unique' : return md5(uniqid(mt_rand()));
break;
}
}
// ------------------------------------------------------------------------
/**
* Alternator
*
* Allows strings to be alternated. See docs...
*
* @access public
* @param string (as many parameters as needed)
* @return string
*/
function alternator()
{
static $i;
if (func_num_args() == 0)
{
$i = 0;
return '';
}
$args = func_get_args();
return $args[($i++ % count($args))];
}
// ------------------------------------------------------------------------
/**
* Repeater function
*
* @access public
* @param string
* @param integer number of repeats
* @return string
*/
function repeater($data, $num = 1)
{
return (($num > 0) ? str_repeat($data, $num) : '');
}
?>
\ No newline at end of file +<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 4.3.2 or newer
+ *
+ * @package CodeIgniter
+ * @author ExpressionEngine Dev Team
+ * @copyright Copyright (c) 2006, EllisLab, Inc.
+ * @license http://www.codeigniter.com/user_guide/license.html
+ * @link http://www.codeigniter.com
+ * @since Version 1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * CodeIgniter String Helpers
+ *
+ * @package CodeIgniter
+ * @subpackage Helpers
+ * @category Helpers
+ * @author ExpressionEngine Dev Team
+ * @link http://www.codeigniter.com/user_guide/helpers/string_helper.html
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * Trim Slashes
+ *
+ * Removes any leading/traling slashes from a string:
+ *
+ * /this/that/theother/
+ *
+ * becomes:
+ *
+ * this/that/theother
+ *
+ * @access public
+ * @param string
+ * @return string
+ */
+function trim_slashes($str)
+{
+ return trim($str, '/');
+}
+
+// ------------------------------------------------------------------------
+
+/**
+ * Strip Slashes
+ *
+ * Removes slashes contained in a string or in an array
+ *
+ * @access public
+ * @param mixed string or array
+ * @return mixed stering or array
+ */
+ function strip_slashes($str)
+ {
+ if (is_array($str))
+ {
+ foreach ($str as $key => $val)
+ {
+ $str[$key] = strip_slashes($val);
+ }
+ }
+ else
+ {
+ $str = stripslashes($str);
+ }
+
+ return $str;
+}
+
+// ------------------------------------------------------------------------
+
+/**
+ * Strip Quotes
+ *
+ * Removes single and double quotes from a string
+ *
+ * @access public
+ * @param string
+ * @return string
+ */
+function strip_quotes($str)
+{
+ return str_replace(array('"', "'"), '', $str);
+}
+
+// ------------------------------------------------------------------------
+
+/**
+ * Quotes to Entities
+ *
+ * Converts single and double quotes to entities
+ *
+ * @access public
+ * @param string
+ * @return string
+ */
+function quotes_to_entities($str)
+{
+ return str_replace(array("\'","\"","'",'"'), array("'",""","'","""), $str);
+}
+
+// ------------------------------------------------------------------------
+/**
+ * Reduce Double Slashes
+ *
+ * Converts double slashes in a string to a single slash,
+ * except those found in http://
+ *
+ * http://www.some-site.com//index.php
+ *
+ * becomes:
+ *
+ * http://www.some-site.com/index.php
+ *
+ * @access public
+ * @param string
+ * @return string
+ */
+function reduce_double_slashes($str)
+{
+ return preg_replace("#([^:])//+#", "\\1/", $str);
+}
+
+// ------------------------------------------------------------------------
+
+/**
+ * Reduce Multiples
+ *
+ * Reduces multiple instances of a particular character. Example:
+ *
+ * Fred, Bill,, Joe, Jimmy
+ *
+ * becomes:
+ *
+ * Fred, Bill, Joe, Jimmy
+ *
+ * @access public
+ * @param string
+ * @param string the character you wish to reduce
+ * @param bool TRUE/FALSE - whether to trim the character from the beginning/end
+ * @return string
+ */
+function reduce_multiples($str, $character = ',', $trim = FALSE)
+{
+ $str = preg_replace('#'.preg_quote($character, '#').'{2,}#', $character, $str);
+
+ if ($trim === TRUE)
+ {
+ $str = trim($str, $character);
+ }
+
+ return $str;
+}
+
+// ------------------------------------------------------------------------
+
+/**
+ * Create a Random String
+ *
+ * Useful for generating passwords or hashes.
+ *
+ * @access public
+ * @param string type of random string. Options: alunum, numeric, nozero, unique
+ * @param integer number of characters
+ * @return string
+ */
+function random_string($type = 'alnum', $len = 8)
+{
+ switch($type)
+ {
+ case 'alnum' :
+ case 'numeric' :
+ case 'nozero' :
+
+ switch ($type)
+ {
+ case 'alnum' : $pool = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
+ break;
+ case 'numeric' : $pool = '0123456789';
+ break;
+ case 'nozero' : $pool = '123456789';
+ break;
+ }
+
+ $str = '';
+ for ($i=0; $i < $len; $i++)
+ {
+ $str .= substr($pool, mt_rand(0, strlen($pool) -1), 1);
+ }
+ return $str;
+ break;
+ case 'unique' : return md5(uniqid(mt_rand()));
+ break;
+ }
+}
+// ------------------------------------------------------------------------
+
+/**
+ * Alternator
+ *
+ * Allows strings to be alternated. See docs...
+ *
+ * @access public
+ * @param string (as many parameters as needed)
+ * @return string
+ */
+function alternator()
+{
+ static $i;
+
+ if (func_num_args() == 0)
+ {
+ $i = 0;
+ return '';
+ }
+ $args = func_get_args();
+ return $args[($i++ % count($args))];
+}
+
+// ------------------------------------------------------------------------
+
+/**
+ * Repeater function
+ *
+ * @access public
+ * @param string
+ * @param integer number of repeats
+ * @return string
+ */
+function repeater($data, $num = 1)
+{
+ return (($num > 0) ? str_repeat($data, $num) : '');
+}
+
+
+?>
\ No newline at end of file |