PHP Value from Array

Question

I'm trying to work out how to get values from one of three arrays based on the array name.

$ABC001 = array('A'=>'10','B'=>'2','C'=>'1.0');
$ABC002 = array('A'=>'20','B'=>'4','C'=>'1.1');
$ABC003 = array('A'=>'30','B'=>'6','C'=>'1.2');

I have a variable passed to my script it will be contain something like ABC@001 or ABC@002

I'm removing the @ so the var value now matches the array name/

$test = str_replace('@','',$var);

If I do var_dump ( $$test ) I get all the values from the correct array, but if I do echo $$test['A'] or echo $$test[0] I don't get the value from the first key in the correct array.

Can someone advise how to do this.

Thanks

Create one array: $ABC = ['001' => ['A' => '10', ...], ...]! — deceze
– deceze ♦, Commented Jun 13, 2017 at 8:01

fxlacroix · Accepted Answer · 2017-06-13 08:02:20Z

6

try this ${$test} to get the values of the array

<?php

$ABC001 = array('A'=>'10','B'=>'2','C'=>'1.0');
$ABC002 = array('A'=>'20','B'=>'4','C'=>'1.1');
$ABC003 = array('A'=>'30','B'=>'6','C'=>'1.2');

$var = "ABC@002";

$test = str_replace('@','',$var);

var_dump(${$test}['A']);

answered Jun 13, 2017 at 8:02

fxlacroix

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RAUSHAN KUMAR · Accepted Answer · 2017-06-13 08:13:25Z

3

In order to use variable variables with arrays, you have to resolve an ambiguity problem. That is, if you write $$test['A'] then the parser needs to know if you meant to use $test['A'] as a variable, The syntax for resolving this ambiguity is: ${$test}['A'] . Please check the documention here PHP Variable Variable

edited Jun 13, 2017 at 8:13

answered Jun 13, 2017 at 8:04

RAUSHAN KUMAR

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