multiple variables check with preg_match
I'm running checks to validate a form, and I'm trying to use preg_match like follows:
}else if(!preg_match("/^[a-zA-Z0-9]*$/",$firstName)){
//code
}
however, I want to check several variables, like $lastName, $address, etc...
How can I include them in the checking process withouth calling preg_match to every singe variable?
Thanks!
php validation
asked Nov 25 '18 at 15:12
RodrigoRodrigo
116
add a comment |
I'm running checks to validate a form, and I'm trying to use preg_match like follows:
}else if(!preg_match("/^[a-zA-Z0-9]*$/",$firstName)){
//code
}
however, I want to check several variables, like $lastName, $address, etc...
How can I include them in the checking process withouth calling preg_match to every singe variable?
Thanks!
php validation
asked Nov 25 '18 at 15:12
RodrigoRodrigo
116
What is the regex for? How can one single regex apply to every variable which has it's own purpose?
– vivek_23
Nov 25 '18 at 15:42
add a comment |
I'm running checks to validate a form, and I'm trying to use preg_match like follows:
}else if(!preg_match("/^[a-zA-Z0-9]*$/",$firstName)){
//code
}
however, I want to check several variables, like $lastName, $address, etc...
How can I include them in the checking process withouth calling preg_match to every singe variable?
Thanks!
php validation
asked Nov 25 '18 at 15:12
RodrigoRodrigo
116
I'm running checks to validate a form, and I'm trying to use preg_match like follows:
}else if(!preg_match("/^[a-zA-Z0-9]*$/",$firstName)){
//code
}
however, I want to check several variables, like $lastName, $address, etc...
How can I include them in the checking process withouth calling preg_match to every singe variable?
Thanks!
php validation
php validation
asked Nov 25 '18 at 15:12
RodrigoRodrigo
116
asked Nov 25 '18 at 15:12
RodrigoRodrigo
116
asked Nov 25 '18 at 15:12
RodrigoRodrigo
116
asked Nov 25 '18 at 15:12
RodrigoRodrigo
116
asked Nov 25 '18 at 15:12
RodrigoRodrigo
116
116
What is the regex for? How can one single regex apply to every variable which has it's own purpose?
– vivek_23
Nov 25 '18 at 15:42
add a comment |
What is the regex for? How can one single regex apply to every variable which has it's own purpose?
– vivek_23
Nov 25 '18 at 15:42
What is the regex for? How can one single regex apply to every variable which has it's own purpose?
– vivek_23
Nov 25 '18 at 15:42
What is the regex for? How can one single regex apply to every variable which has it's own purpose?
– vivek_23
Nov 25 '18 at 15:42
add a comment |
1 Answer
1
active
oldest
votes
If you just want to check that a string is alphanumerical use http://php.net/manual/en/function.ctype-alnum.php. This will be much easier.
if (ctype_alnum($firstName) && ctype_alnum($lastName) && ctype_alnum($address)) {
//they are all alphanumerical
}
alternatively if you need to run your own validation multiple times you can create your own function and call that the same way
if (validate_inputs($firstName) && validate_inputs($lastName) && validate_inputs($address)) {
//it is an alphanumerical string
}
function validate_inputs($input) {
return preg_match("/^[a-zA-Z0-9]+$/", $input);//i changed the quantifier so the string must contain a character as well
}
answered Nov 25 '18 at 17:03
user3783243user3783243
2,33511121
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
If you just want to check that a string is alphanumerical use http://php.net/manual/en/function.ctype-alnum.php. This will be much easier.
if (ctype_alnum($firstName) && ctype_alnum($lastName) && ctype_alnum($address)) {
//they are all alphanumerical
}
alternatively if you need to run your own validation multiple times you can create your own function and call that the same way
if (validate_inputs($firstName) && validate_inputs($lastName) && validate_inputs($address)) {
//it is an alphanumerical string
}
function validate_inputs($input) {
return preg_match("/^[a-zA-Z0-9]+$/", $input);//i changed the quantifier so the string must contain a character as well
}
answered Nov 25 '18 at 17:03
user3783243user3783243
2,33511121
add a comment |
If you just want to check that a string is alphanumerical use http://php.net/manual/en/function.ctype-alnum.php. This will be much easier.
if (ctype_alnum($firstName) && ctype_alnum($lastName) && ctype_alnum($address)) {
//they are all alphanumerical
}
alternatively if you need to run your own validation multiple times you can create your own function and call that the same way
if (validate_inputs($firstName) && validate_inputs($lastName) && validate_inputs($address)) {
//it is an alphanumerical string
}
function validate_inputs($input) {
return preg_match("/^[a-zA-Z0-9]+$/", $input);//i changed the quantifier so the string must contain a character as well
}
answered Nov 25 '18 at 17:03
user3783243user3783243
2,33511121
add a comment |
If you just want to check that a string is alphanumerical use http://php.net/manual/en/function.ctype-alnum.php. This will be much easier.
if (ctype_alnum($firstName) && ctype_alnum($lastName) && ctype_alnum($address)) {
//they are all alphanumerical
}
alternatively if you need to run your own validation multiple times you can create your own function and call that the same way
if (validate_inputs($firstName) && validate_inputs($lastName) && validate_inputs($address)) {
//it is an alphanumerical string
}
function validate_inputs($input) {
return preg_match("/^[a-zA-Z0-9]+$/", $input);//i changed the quantifier so the string must contain a character as well
}
answered Nov 25 '18 at 17:03
user3783243user3783243
2,33511121
If you just want to check that a string is alphanumerical use http://php.net/manual/en/function.ctype-alnum.php. This will be much easier.
if (ctype_alnum($firstName) && ctype_alnum($lastName) && ctype_alnum($address)) {
//they are all alphanumerical
}
alternatively if you need to run your own validation multiple times you can create your own function and call that the same way
if (validate_inputs($firstName) && validate_inputs($lastName) && validate_inputs($address)) {
//it is an alphanumerical string
}
function validate_inputs($input) {
return preg_match("/^[a-zA-Z0-9]+$/", $input);//i changed the quantifier so the string must contain a character as well
}
answered Nov 25 '18 at 17:03
user3783243user3783243
2,33511121
answered Nov 25 '18 at 17:03
user3783243user3783243
2,33511121
answered Nov 25 '18 at 17:03
user3783243user3783243
2,33511121
answered Nov 25 '18 at 17:03
user3783243user3783243
2,33511121
2,33511121
add a comment |
add a comment |
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What is the regex for? How can one single regex apply to every variable which has it's own purpose?
– vivek_23
Nov 25 '18 at 15:42