如何使用PHP将每个数组值存储在变量中

Question

I have an array that looks something like this:

Array
(
    [2] => http://www.marleenvanlook.be/admin.php
    [4] => http://www.marleenvanlook.be/checklogin.php
    [5] => http://www.marleenvanlook.be/checkupload.php
    [6] => http://www.marleenvanlook.be/contact.php
)

What I want to do is store each value from this array to a variable (using PHP). So for example:

$something1 = "http://www.marleenvanlook.be/admin.php";
$something2 = "http://www.marleenvanlook.be/checklogin.php";
...

Answer 1

You can use extract() :

$data = array(
    'something1',
    'something2',
    'something3',
);
extract($data, EXTR_PREFIX_ALL, 'var');
echo $var0; //Output something1

More info on http://br2.php.net/manual/en/function.extract.php

Answer 2

Well.. you could do something like this?

$myArray = array("http://www.marleenvanlook.be/admin.php","http://www.marleenvanlook.be/checklogin.php","etc");

$i = 0;
foreach($myArray as $value){
    ${'something'.$i} = $value;
    $i++;
    }

echo $something0; //http://www.marleenvanlook.be/admin.php

This would dynamically create variables with names like $something0 , $something1 , etc holding a value of the array assigned in the foreach .

If you want the keys to be involved you can also do this:

$myArray = array(1 => "http://www.marleenvanlook.be/admin.php","http://www.marleenvanlook.be/checklogin.php","etc");

foreach($myArray as $key => $value){
    ${'something'.$key} = $value;
    }

echo $something1; //http://www.marleenvanlook.be/admin.php

Answer 3

PHP has something called variable variables which lets you name a variable with the value of another variable.

$something = array(
    'http://www.marleenvanlook.be/admin.php',
    'http://www.marleenvanlook.be/checklogin.php',
    'http://www.marleenvanlook.be/checkupload.php',
    'http://www.marleenvanlook.be/contact.php',
);

foreach($something as $key => $value) {
    $key = 'something' . $key;
    $$key = $value;

    // OR (condensed version)
    // ${"something{$key}"} = $value;
}

echo $something2;
// http://www.marleenvanlook.be/checkupload.php

But the question is why would you want to do this? Arrays are meant to be accessed by keys, so you can just do:

echo $something[2];
// http://www.marleenvanlook.be/checkupload.php

Answer 4

What I would do is:

$something1 = $the_array[2];
$something2 = $the_array[4];