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);
}
}
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