[SOLVED] Arrays

[Ken2k7]

Almost all forum scripts have some sort of lang.php which holds an array with output lines.

 

$arr = array();

$arr = array(
'SOMETHING'  =>   "SOMETHING ELSE",
'SOMETHING 1'    =>   "SOMETHING ELSE 1",
.
.
.
);

?>

 

My question is how does => work and if I plan to use something like this too, how would I go about getting the values?

 

Thanks in advance,

Ken

[revraz]

=> is assigning a value to an index, or do you mean -> ?

[Daniel0]

It's a way of specifying the key in order to create an associative array instead of the default enumerated array.

 

<?php
$array = array('key' => 'value');
echo $array['key']; // output: value

$array = array('value');
echo $array[0]; //output: value
?>

 

See: http://www.php.net/manual/en/language.types.array.php

[Ken2k7]

Thanks Daniel.

 

Final question on this matter: can I use a loop for this?

 

Edit: okay read the link you placed up Daniel. Question now is: can you explain what the => does in this? And what does $array as $i mean?

<?php

foreach ($array as $i => $value) {
    unset($array[$i]);
}

?>

[Daniel0]

It signifies the same. The thing to the right of the => operator is the value and to the left is the key. In other words: You are looping through the array $array and at each iteration you can access the value as $value and the key as $i inside the loop.

 

You can read more about foreach here: http://php.net/foreach

[Ken2k7]

Oh okay.

 

Just making sure on one thing here.

 

So rather than having a key, can I use the foreach loop as such:

<?php 
foreach ($array as $i) {
    unset($array[$i]);
}
?>

 

Unless the $value plays a special role in that foreach loop :S Which I have no idea what it does.

[Daniel0]

No, if the => operator is omitted the variable after as will contain the value.

[Ken2k7]

Oh 

 

I think I get this. Thanks Daniel.