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Writing an unpredictable number of variables into an Array

5:28 pm on Dec 11, 2012 (gmt 0)

5+ Year Member

In normal circumstances if I have two variables, I can write them into an array like this

$var1 = 3;
$var2 = 4;
$myarray = array($var1, $var2);

What if I don't know in advance how many variables I will have? Variables are sent via form input from another script with method="POST". I can get 4 variables now but a few minutes later someone else might send 14 variables.

All I really need is to save the variables in an array.

Could you please point me in the right direction?
7:50 pm on Dec 11, 2012 (gmt 0)

WebmasterWorld Senior Member 5+ Year Member

foreach($_POST as $name => $value) {
print "$name : $value<br>";
1:56 pm on Dec 12, 2012 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member

You can use [] to append to an array:

$myarray = array();
foreach($_POST as $k => $v)
$myarray[] = $v;
1:04 pm on Dec 15, 2012 (gmt 0)

5+ Year Member

@dmorison, @StoutFiles great stuff, I didn't know you could do that!

I realised that I can use this function and avoid defining the &_POST variables. It will automatically grab everything that is $_POSTed to this script and write into an array. Brilliant! Thank you very much!

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