php array - upper case or lower case
Does it matter whether an uppercase or lower case 开发者_开发问答a
is used for php arrays?
For example: array()
vs. Array()
I believe the OP is referring to this:
<?php
$arr = array("foo" => "bar", 12 => true);
var_dump($arr);
// returns array(2) { ["foo"]=> string(3) "bar" [12]=> bool(true) }
$arr = Array("foo" => "bar", 12 => true);
var_dump($arr);
// also returns array(2) { ["foo"]=> string(3) "bar" [12]=> bool(true) }
?>
So the answer is no, there is no difference
If you mean:
$array = Array(1,2,3);
vs
$array = array(1,2,3);
vs
$array = aRRaY(1,2,3);
there is no functional difference. It is only a question of style. Like PHP functions, the array language construct is case-insensitive.
If you mean array names/variables, then yes it does, PHP variables are case-sensitive. If however, you are asking about standards, have a look at:
PHP Coding Standard about Naming Conventions
David - yes it does. they are treated as different variables $varPerson and $varperson.
However, the main thing really is more that you should be following some kind of coding guideline doc that mandates case and scope of all variables. this is probably a much more important driver of variable naming/case than the simple question implies.
jim
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