Understanding array syntax

[iantresman]

What's the difference between referring to an array as "[FONT=courier new]array[/font]" and as "[FONT=courier new]array[][/font]"? For example, I have the following code:

foreach ($array as $row) {   //For each row in the array

if (count($row)== 4) {   //Check that each row has 4 values
	$newarray[] = $row; //Yes, transfer row to new array
}

I find that:
[FONT=courier new]$newarray[] = $row;[/font] // this works, but
[FONT=courier new]$newarray = $row;[/font] // (without the square brackets) does not.

Regards,
Ian Tresman,
Derby UK

[laserlight]

Read the PHP Manual:
http://www.php.net/manual/en/language.types.array.php

Basically, you have to differentiate between the array and the elements that make up the array.

$newarray[] = $row;
adds the value of $row as a new element in $newarray

$newarray = $row;
assigns the array $row to $newarray