trying to run an error check

[peanutgallery83]

I am trying to run an error check in a class function that compare's field variables inputted with variables returned from a table field and stored in an array (FieldArray).

If the inputted variable does NOT appear in the FieldArray list, then an error message should display.

I'm thinking that in order for this to work I must loop through the array using foreach(), and then verify that the input variable, $name, is contained within the array - if not then it triggers the error.

The problem I'm having as the code is written, is that when I input an invalid variable, it is not displaying the error message, it's just skipping over it and continuing to execute the rest of the class.

The code for my error checking function is below. $this->FieldArray is the array from the table. $name is supposed to be gathered currently from a static variable on another page: $etmp->setParam('First-Name','John'); I'm trying to have it so that if $name (First-Name) is not a value in the array, then the error is triggered, if First-Name IS a value in the array, then it should continue to execute.

function setParam($name, $value)
	{
		// load array values from template FieldList and compare to input variable.  If input variable invalid, throw error
		foreach ($this->FieldArray as $this->field)
		{
			if(!isset($this->field[$name]))
			{
       			trigger_error ('Invalid Field Selected', E_USER_NOTICE);
     		} else {
				$this->params[$name] = $value;
			}
		}
	}

[laserlight]

I'm thinking that in order for this to work I must loop through the array using foreach(), and then verify that the input variable, $name, is contained within the array - if not then it triggers the error.

You should tell us what is the structure of $this->FieldArray. From your code it appears to be a two dimensional array, but the name of 'field' for its elements does not suggest this.

The problem I'm having as the code is written, is that when I input an invalid variable, it is not displaying the error message, it's just skipping over it and continuing to execute the rest of the class.

The code for my error checking function is below. $this->FieldArray is the array from the table. $name is supposed to be gathered currently from a static variable on another page: $etmp->setParam('First-Name','John'); I'm trying to have it so that if $name (First-Name) is not a value in the array, then the error is triggered, if First-Name IS a value in the array, then it should continue to execute.

I think you show throw an exception instead of triggering an error.

Also, you should change $this->field to $field since you want a local variable.

[peanutgallery83]

Sorry...here is the portion of the class where I load the data from the db and create the array:

function loadEmailTemplate($templateID)
	{		
		$TABLE_NAME=strtolower($_GET['module']);

	// FIND AND CREATE THE ARRAY OF FIELDLIST ENTRIES FROM TABLE
	$db = myDatabase::getInstance();
	$sql = "
	SELECT 
		*
	FROM 
		email_templates
	WHERE
		ID=$templateID
	ORDER BY
		Name
	";

	$result = $db->Execute($sql) or die($sql."<p>".$db->ErrorMsg());

		if($row=$result->FetchRow()) {
		  // SPLIT FIELDS ON PIPE AND ANY SPACE CHARACTERS
		  $this->FieldArray=preg_split('/[\|\s]/',$row['FieldList'],-1, PREG_SPLIT_NO_EMPTY); 
		} else {
			trigger_error('Invalid Email Template ID',E_USER_NOTICE);
		}
}

Essentially, the array is built from values in the FieldList field of the table, where info is stored like: First-Name|Last-Name|Purchase-Price

I'm splitting the field on the | delimiter, so the array ends up looking like this:
Array
(
[0] => First-Name
[1] => Last-Name
[2] => Purchase-Price
[3] => Purchase-Quantity
)

I'm now trying to send a variable to the setParam function (from my previous post), have it compare the variable to the values stored in the array, and either allow the script to continue to execute if the values are present, or display an error if they are not present.