regex validation for php


Validation library for the php here you find all the regex validation which we  are using in the validation of our text field.




<?php
class validation{


/**
     * Matches only alpha letters
     * @param   string
     * @return  boolean
     */
    function is_alpha($val)
    {
        return (bool)preg_match("/^([a-zA-Z])+$/i", $val);

    }

 /**
     * Matches alpha and dashes like -,_
     * @param   string
     * @return  boolean
     */
    function is_alphadash($val)
    {
        return (bool)preg_match("/^([A-Za-z_-])+$/i", $val);

    }
/**
     * Matches alpha and numbers only
     * @param   string
     * @return  boolean
     */
    function is_alphanumeric($val)
    {
        return (bool)preg_match("/^([a-zA-Z0-9])+$/i", $val);

    }
/**
 * is given string is ascii format?
 * @param   string
 * @return  boolean
 */

 function is_ascii($val)
 {
 return !preg_match('/[^x00-x7F]/i', $val);
 }
  /**
 * Matches base64 enoding string
 * @param   string
 * @return  boolean
 */
 function is_base64($val)
 {
 return (bool)!preg_match('/[^a-zA-Z0-9/+=]/', $val);

 }
/**
 * is given field is boolean value or not
 * @param   string
 * @return  boolean
 */
 function is_boolean($val)
 {
 $booleans = array(1, 0, '1', '0', true, false, true, false);
 $literals = array('true', 'false', 'yes', 'no');
 foreach ($booleans as $bool) {
 if ($val === $bool)
 return true;
 }

 return in_array(strtolower($val), $literals);
 }
 /**
 * Valid Credit Card
 * @param   string
 * @return  boolean
 */
 function is_creditcard($val)
 {
 return (bool)preg_match("/^((4d{3})|(5[1-5]d{2})|(6011)|(7d{3}))-?d{4}-?d{4}-?d{4}|3[4,7]d{13}$/",
 $val);

 }
  /**
 * Check if given string matches any format date
 * @param   string
 * @return  boolean
 */
 function is_date($val)
 {
 return (strtotime($val) !== false);

 }
  /**
 * Checks given value matches date de
 * @param   string
 * @return  boolean
 */

 function is_dateDE($date)
 {
 return (bool)preg_match("/^dd?.dd?.ddd?d?$/", $date);
 }
/**
 * Checks given value matches us citizen social security number
 * @param   string
 * @return  boolean
 */
 function is_dateISO($date)
 {
 return (bool)preg_match("/^d{4}[/-]d{1,2}[/-]d{1,2}$/", $date);
 }
 /**
 * check decimal with . is optional and after decimal places up to 6th precision
 * @param   string
 * @return  boolean
 */
 function is_decimal($val)
 {
 return (bool)preg_match("/^d+(.d{1,6})?$/'", $val);

 }
  /**
 * valid email
 * @param   string
 * @return  boolean
 */
 function is_email($val)
 {
 return (bool)(preg_match("/^([a-z0-9+_-]+)(.[a-z0-9+_-]+)*@([a-z0-9-]+.)+[a-z]{2,6}$/ix",
 $val));

 }
 /*
 * Checks that a field is exactly the right length.
 * @param   string   value
 * @link  http://php.net/checkdnsrr  not added to Windows until PHP 5.3.0
 * @return  boolean
 */
 function is_emaildomain($email)
 {
 return (bool)checkdnsrr(preg_replace('/^[^@]++@/', '', $email), 'MX');

 }
 /**
 * check if field empty string ,orject,array
 * @param   string
 * @return  boolean
 */
 function is_empty($val)
 {
 return in_array($val, array(null, false, '', array(),(object)array()), true);

 }
  /**
 * check given string againest given array values
 * @param   string
 * @return  boolean
 */
 function is_enum($val, $arr)
 {
 return in_array($val, $arr);

 }
  /**
 * check given array key element exists?
 * @param   string
 * @return  boolean
 */

 function is_exists($val, $arr)
 {
 return isset($arr[$val]);

 }
  /**
 * Valid hexadecimal color ,that may have #,
 * @param   string
 * @return  boolean
 */
 function is_hexcolor($color)
 {
 return (bool)preg_match('/^#?+[0-9a-f]{3}(?:[0-9a-f]{3})?$/i', $color);

 }
/**
 * given sting has html tags?
 * @param   string
 * @return  boolean
 */
 function is_htmlsafe($val)
 {
 return (bool)(!preg_match("/<(.*)>.*
 <$1>
 /", $val));

 }
  /**
 *Matches exactly number
 * @param   string
 * @return  boolean
 */
 function is_integer($val)
 {
 return is_int($val);

 }
 /**
 * Valid IP address
 * @param   string
 * @return  boolean
 */
 function is_ipaddress($val)
 {
 return (bool)preg_match("/^(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?).(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?).(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?).(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/",
 $val);

 }

 /**
 * Check given sting has script tags
 * @param   string
 * @return  boolean
 */
 function is_jssafe($val)
 {
 return (bool)(!preg_match("/<script[^>]*>[srn]*(<!--)?|(-->)?[srn]*</script>/",
 $val));

 }
 /**
 * check for exactly length of string
 * @param   string
 * @return  boolean
 */
 function is_length($val, $length)
 {
 return (strlen($val) == (int)$length);

 }
  /**
 * Given sting is lower cased
 * @param   string
 * @return  boolean
 */
 function is_lower($val)
 {
 return (bool)preg_match("/^[a-z]+$/", $val);

 }
  /**
 * Given sting is lower cased
 * @param   string
 * @return  boolean
 */
 function is_lower($val)
 {
 return (bool)preg_match("/^[a-z]+$/", $val);

 }
   /**
 * Checks given value again MAC address of the computer
 * @param   string   value
 * @return  boolean
 */
 function is_macaddress($val)
 {
 return (bool)preg_match('/^([0-9a-fA-F][0-9a-fA-F]:){5}([0-9a-fA-F][0-9a-fA-F])$/',
 $val);
 }
 /**
 * compares two any kind of values ,stictly
 * @param   string
 * @return  boolean
 */
 function is_matches($val, $value)
 {
 return ($val === $value);

 }
  /**
 * check string length exceeds maximum length
 * @param   string
 * @return  boolean
 */
 function is_maxlength($val, $max)
 {
 return (strlen($val) <= (int)$max);
 }
/**
 * check given number exceeds max values
 * @param   string
 * @return  boolean
 */
 function is_maxvalue($number,$max)
 {
 return ($number >$max);

 }
 /**
 * Checks that a field matches a v2 md5 string
 * @param   string
 * @return  boolean
 */
 function is_md5($val)
 {
 return (bool)preg_match("/[0-9a-f]{32}/i", $val);

 }
  /**
 *Check the string length has minimum length
 * @param   string
 * @return  boolean
 */
 function is_minlength($val, $min)
 {
 return (strlen($val) >= (int)$min);

 }
 /**
 * check given number below value
 * @param   string
 * @return  boolean
 */
 function is_minvalue($number)
 {
 return ($number < $max);

 }
 /**
 * check given sring has multilines
 * @param   string
 * @return  boolean
 */
 function is_multiline($val)
 {
 return (bool)preg_match("/[nrt]+/", $val);

 }
 /**
 * check a number optional -,+,. values
 * @param   string
 * @return  boolean
 */
 function is_numeric($val)
 {
 return (bool)preg_match('/^[-+]?[0-9]*.?[0-9]+$/', $val);

 }
 /**
 * Matches a phone number that length optional numbers 7,10,11
 * @param   string
 * @return  boolean
 */
 function is_phone($number, $lengths = null)
 {
 if (!is_array($lengths)) {
 $lengths = array(7, 10, 11);
 }
 $number = preg_replace('/D+/', '', $number);
 return in_array(strlen($number), $lengths);

 }
  /**
 * Checks that given value matches following country pin codes.
 * at = austria
 * au = australia
 * ca = canada
 * de = german
 * ee = estonia
 * nl = netherlands
 * it = italy
 * pt = portugal
 * se = sweden
 * uk = united kingdom
 * us = united states
 * @param String
 * @param String
 * @return  boolean
 */
 function is_pincode($val, $country = 'us')
 {
 $patterns = array('at' => '^[0-9]{4,4}$', 'au' => '^[2-9][0-9]{2,3}$', 'ca' =>
 '^[a-zA-Z].[0-9].[a-zA-Z].s[0-9].[a-zA-Z].[0-9].', 'de' => '^[0-9]{5,5}$', 'ee' =>
 '^[0-9]{5,5}$', 'nl' => '^[0-9]{4,4}s[a-zA-Z]{2,2}$', 'it' => '^[0-9]{5,5}$',
 'pt' => '^[0-9]{4,4}-[0-9]{3,3}$', 'se' => '^[0-9]{3,3}s[0-9]{2,2}$', 'uk' =>
 '^([A-Z]{1,2}[0-9]{1}[0-9A-Z]{0,1}) ?([0-9]{1}[A-Z]{1,2})$', 'us' =>
 '^[0-9]{5,5}[-]{0,1}[0-9]{4,4}$');
 if (!array_key_exists($country, $patterns))
 return false;
 return (bool)preg_match("/" . $patterns[$country] . "/", $val);


 }
 /**
* check given string length is between given range
* @param   string
* @return  boolean
*/
function is_rangelength($val, $min = '', $max = '')
{
return (strlen($val) >= $min and strlen($val) <= $max);
}
/**
     * check given number between given values
     * @param   string
     * @return  boolean
     */
    function is_rangevalue($number,$min,$max)
    {
        return ($number > $min and $number < $max);

    }
/**
     * check given number between given values
     * @param   string
     * @return  boolean
     */
    function is_rangevalue($number,$min,$max)
    {
        return ($number > $min and $number < $max);

    }
/**
     * Check is rgb color value
     * @param   string
     * @return  boolean
     */
    function is_rgb($val)
    {
        return (bool)preg_match("/^(rgb(s*b([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])bs*,s*b([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])bs*,s*b([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])bs*))|(rgb(s*(d?d%|100%)+s*,s*(d?d%|100%)+s*,s*(d?d%|100%)+s*))$/",
            $val);
    }
/**
     * Time in 12 hours format with optional seconds
     * 08:00AM | 10:00am | 7:00pm
     * @param   string
     * @return  boolean
     */
    function is_time12($val)
    {
        return (bool)preg_match("/^([1-9]|1[0-2]|0[1-9]){1}(:[0-5][0-9][aApP][mM]){1}$/",
            $val);
    }
/**
     * Time in 24 hours format with optional seconds
     * 12:15 | 10:26:59 | 22:01:15
     * @param   string
     * @return  boolean
     */

    function is_time24($val)
    {
        return (bool)preg_match("/^(([0-1]?[0-9])|([2][0-3])):([0-5]?[0-9])(:([0-5]?[0-9]))?$/",
            $val);
    }
/**
     * Checks given value matches a time zone
     * +00:00 | -05:00
     * @param   string
     * @return  boolean
     */
    function is_timezone($val)
    {
        return (bool)preg_match("/^[-+]((0[0-9]|1[0-3]):([03]0|45)|14:00)$/", $val);
    }
/**
     * A token that don't have any white space
     * @param   string
     * @return  boolean
     */
    function is_token($val)
    {
        return (bool)!preg_match('/s/', $val);

    }
/**
     * check if array has unique elements,it must have  minimum one element
     * @param   string
     * @return  boolean
     */
    function is_unique($arr)
    {
        $arr = (array )$arr;
        $count1 = count($arr);
        $count2 = count(array_unique($arr));
        return (count1 != 0 and (count1 == $count2));
    }
/**
     * Given string is upper cased?
     * @param   string
     * @return  boolean
     */
    function is_upper($val)
    {
        return (bool)preg_match("/^[A-Z]+$/", $val);

    }
/**
     * Valid URL or web address
     * @param   string
     * @return  boolean
     */
    function is_url($val)
    {
        return (bool)preg_match("^((((https?|ftps?|gopher|telnet|nntp)://)|(mailto:|news:))(%[0-9A-Fa-f]{2}|[-()_.!~*';/?:@&=+$,A-Za-z0-9])+)([).!';/?:,][[:blank:]])?$",
            $val);

    }
/**
     * Check given url really exists?
     * @param   string
     * @return  boolean
     */
    function is_urlexists($link)
    {

        return (bool)@fsockopen($link, 80, $errno, $errstr, 30);

    }
/**
     * Checks given value matches us citizen social security number
     * @param   string
     * @return  boolean
     */
    function is_usssn($val)
    {
        return (bool)preg_match("/^d{3}-d{2}-d{4}$/", $val);
    }
/**
     * check given sting is UTF8
     * @param   string
     * @return  boolean
     */
    function is_utf8($val)
    {
        return preg_match('%(?:
        [xC2-xDF][x80-xBF]
        |xE0[xA0-xBF][x80-xBF]
        |[xE1-xECxEExEF][x80-xBF]{2}
        |xED[x80-x9F][x80-xBF]
        |xF0[x90-xBF][x80-xBF]{2}
        |[xF1-xF3][x80-xBF]{3}
        |xF4[x80-x8F][x80-xBF]{2}
        )+%xs', $val);

    }
}

Comments

Popular posts from this blog

Merge JS and CSS file to make your codeigniter website faster using CARABINER library