elabuwa Posted October 6, 2009 Share Posted October 6, 2009 Hey guys, Probably one of the easiest questions ever asked. What is the function you use to validate if a variable is numeric is or not. This function must treat values with decimals as numbers. I tried is_numeric, c_type(digit) or some thing like that with no luck. I tried this below code found in the net. If (validate_numeric($total_received)){ echo "Please Enter A Numeric Value For The Total Received"; exit; } I ended up getting the below error. Fatal error: Call to undefined function validate_numeric() in C:\wamp\www\myacc\receipts\process.php on line 47 So i thought that there is an easier already built in function that im missing. can you please help me out. thanks in advance. Link to comment https://forums.phpfreaks.com/topic/176689-solved-php-number-validation/ Share on other sites More sharing options...
Jahren Posted October 6, 2009 Share Posted October 6, 2009 if(is_numeric($IThinkItsANumber)) //bla What is the error with is_numeric? reference: http://us3.php.net/manual/en/function.is-numeric.php Link to comment https://forums.phpfreaks.com/topic/176689-solved-php-number-validation/#findComment-931514 Share on other sites More sharing options...
KevinM1 Posted October 6, 2009 Share Posted October 6, 2009 Moreover, like your error states, there is no such function as validate_numeric() in PHP. For simple things like this, looking at the manual (http://www.php.net/quickref.php) is the best place to start. Link to comment https://forums.phpfreaks.com/topic/176689-solved-php-number-validation/#findComment-931519 Share on other sites More sharing options...
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