Checking if field is empty AND using !is_numeric
Posted on
16th Feb 2014 07:03 pm by
admin
Hi lads,
Need to be able to display an error message (using isset?) that says "Cant leave field blank" when someone clicks on submit after leaving the field blank. The problem is that I'm also using the !is numeric function and that has an error message of "please enter numbers only" . Problem is that if someone leaves the field blank, the !is_numeric function picks up that there are no numbers before isset does and therefore outputs "please enter numbers" .
Did you know?Explore Trending and Topic pages for more stories like this.
Anyone have any idea's how to fix this ?
My code is :
| <?phpfunction validate_form(){ $entered_grade = trim($_REQUEST['entergrade']); $error = ''; if (! isset($entered_grade)) { $error .= "<span class="error">You cannot leave the grade blank. Enter a mark between 0 and 100.</span>
"; }if (! is_numeric($entered_grade)) { $error .= "<span class="error">Invalid Input. You must enter a NUMBER between 0 and 100</span>
"; } if ($entered_grade >=101 ) { $error .= "<span class="error">Invalid Input. The marks must be between 0 and 100.</span>
"; } return $error;}
Thanks
No comments posted yet
Your Answer:
Login to answer
262 
9 
Other forums
sendmail code suddenly not working
Hi Guys, I maintain 3 sites (including my own) I use the following code from a french webmaster that
Port scanner problem
Hai
recently i developed one app through which u can check the opened and closed ports under an
How can use this array as a key?
Say I have this array for example:
print_r($array);
Prints:
Code: [Select]Array
MS are the best!!!
Visit http://www.microsoft.com/australia/windows/default.aspx?h=watch-a-demo and click the massive '
RadioButtonList data selection
view plaincopy to clipboardprint?How to have a log of all the status a VIM document had been ?
Hi guys,
I’m using SAP Invoice Management plugin and the /OPT/VIM_ANALYTICS transa
Error with login script
I am getting an error with my login script:
Error:
Code: Warning: Cannot modify header inf
Login logout link help
Hi all,
Im new to php and Im having trouble creating a login/logout link for my page that dis
Help with writing "$" with fopen
I just can't get my syntax correct. Could someone help me please? I am trying to write a connect fil
Form errors in an array
I'm processing a form and putting the errors in an array. empty($errors) doesn't seem to do the tric
