How to fix undefined index error in in line no3

**Rabbit** · Sep 10 '12, 03:29 PM

An undefined index error means that they key you're using, in this case 'iit1' doesn't exist in the array you're trying to access, in this case $_POST. Basically, it's saying the page that called that PHP page didn't pass any variable named iit1.

**ayukawaa** · Sep 20 '12, 06:12 PM

Here's my own function for dealing with this... and works with ANY array

$iit1=read_from _array[$_POST, 'iit1'];

Code:

/*
 * READ A VALUE FROM AN ARRAY
 * param array - array from where to read
 * param string - key to read from the array
 * param string - default_value to return if the key does not exist or the it is not a valid array
 * param php_function - php function to execute using the key value
 * return string
 *
**/
	function read_from_array($array, $key, $default_value='', $php_function='')
	{
		if(is_array($array))
		{
			if (array_key_exists($key, $array))
			{
				$str = str_replace('\\', '/', trim($array[$key]));
				if(!empty($php_function))
				{
					return call_user_func($php_function, $str);
				}
				else
				{
					return $str;
				}
			}
		}
		return $default_value;
	}
}

How to fix undefined index error in in line no3

How to fix undefined index error in in line no3

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