Php function to return array of variable

Question

I want to create a simple php function to return an array of variable in wordpress template.

php function in function.php:

function testme (){
     $color = 'imaginary'; // or real  
     $y = 'yellow';
     $s = 'silver' ;

     if ($color != 'imaginary') {
            $y = 'golden';
            $s = 'silver' ;
     } else {
            $y = 'yellow';
            $s = 'white' ;
     }

     $wall = array();
     $wall = array ($y ,$s);
     return $wall;
}

Called this function in my template like this:

<?php 

testme();

?>

<h1>TOP STRIP COLOR IS <?php echo $wall['0'] ?></h1>
<h2>BOTTOM STRIP  COLOR IS <?php echo $wall['1'] ?></h2>

But I am not getting array of values in my <h1> and <h2> tags. Help me to point out my mistake.

The syntax highlighter shows your error. You're missing a quote: $s = 'silver ; <-- here — John Conde
– John Conde, Commented Mar 23, 2014 at 17:12
Assign the returned value to a variable: $wall = testme(); — Mark Baker
– Mark Baker, Commented Mar 23, 2014 at 17:12

iamsleepy · Accepted Answer · 2014-03-23 17:14:47Z

2

You need to put the return value of the function into variables. Like this:

$wall = testme();

and then use it:

<h1>TOP STRIP COLOR IS <?php echo $wall['0'] ?></h1>
<h2>BOTTOM STRIP  COLOR IS <?php echo $wall['1'] ?></h2>

The $wall variables you placed inside the testme function will only work inside the scope of the function.

answered Mar 23, 2014 at 17:14

iamsleepy

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Comments

Akuma · Accepted Answer · 2014-03-23 17:25:00Z

1

Modify testme() function to something like this (I removed unused lines and move $color to function arguments):

function testme ($color) {
    if ($color != 'imaginary') {
        $y = 'golden';
        $s = 'silver';
    } else {
        $y = 'yellow';
        $s = 'white';
    }

    return array($y, $s);
}

And, as said in top comments, assign return value to variable and use it:

<?php
    $result = testme('imaginary'); // Here we pass argument to function
?>
<h1>TOP STRIP COLOR IS <?php echo $result[0] ?></h1>
<h2>BOTTOM STRIP  COLOR IS <?php echo $result[1] ?></h2>

answered Mar 23, 2014 at 17:25

Akuma

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