Value Check

[mtgriffiths]

Hey All,

 

Think this maybe easy but my head is gone and i cant think.

 

I am passing a value over from another page:

 

$Course = $_POST['Course'];

 

I want to check if this value is blank....if so display a message saying that it is blank and to try again.

If it is not blank then run the code below it.

 

Can anyone help?

 

Thanks in advance

 

Matthew

[Orio]

[code<?php

if(empty($Course)) //or $Course == ""
  //$Course is ""

?>

 

Orio.

[cooldude832]

<?php
if(empty($var)){
#its not set or empty
}
?>

[mb81]

Matthew (great name by the way),

 

There is a great function called empty(), it returns FALSE if var  has a non-empty and non-zero value.

 

The following things are considered to be empty:

 

    * "" (an empty string)

    * 0 (0 as an integer)

    * "0" (0 as a string)

    * NULL

    * FALSE

    * array() (an empty array)

    * var $var; (a variable declared, but without a value in a class)

 

so just do a check like this:

 

if (!empty($Course)) {
   // other code here
} else {
   // try again code here
}

 

 

 

[mtgriffiths]

Thanks guys

 

Worked great!

 

Matthew