checking data type - integer from form

a value is come from my form and I want to check if it is integer.

I'm trying to check with gettype() but it is returning "string".

the source of this value is html form. i'm trying to check like this

if (gettype($value)== 'integer'){do the task}

if i echo gettype($value); it prints "string"

and if i echo $value; it prints "45427"

it's not being checked as integer although $value prints integer. Where is the problem ? any alternative way with php except javascript?

 

check following link and you will know it all

http://theserverpages.com/php/manual/en/function.is-int.php

 

wouldnt the link to the php site have been more appropriate?
http://www.php.net/is_int

 

somehow php.net is not opening at my side so gave link for other site, however it solves the purpose

 

You can also use ctype functions...

http://php.net/manual/en/function.ctype-digit.php

or is numeric, which may be more appropriate for decimal or other formats.

http://www.php.net/manual/en/function.is-numeric.php

 

that's not an integer, it's a string, see the 'number' has quotes around it. if you var_dump($value) you'll see string(5) "45427".

You could try using $value = intval($_POST['value']) or however you catch it to enforce integer type, so when you var_dump after that you should see int(5) 45427.

 

there is a php builtin function called isnumber, it will return true if the string only numbers and false if not..

 

thanks guys.