[bukwus]

Hi

I'm a beginner to functions and I tried using the following to alternate the background color of rows with no luck. Can anyone hlep?

<?php
function backgroundColor() {
if ($bg == 'yes') {
echo '';
$bg = 'no';
}
elseIf ($bg == 'no') {
echo 'bgColor';
$bg = 'yes';
}
else {
echo 'error';
}
}

$bg = 'no';
?>

<style>
.bgColor {
color:gray;
}
</style>

<div class="<?php backgroundColor() ?>">
Row 1 content
</div>

<div class="<?php backgroundColor() ?>">
Row 2 content
</div>

<div class="<?php backgroundColor() ?>">
Row 3 content
</div>

[CrazeD]

Your function works, however you have a scope problem. By default, functions don't inherit variables from the rest of the script. It has no idea that $bg was ever initialized.

To fix this, just add global $bg; to the top of your function.

PHP Code:

<?php
function backgroundColor() {
global $bg;
if ($bg == 'yes') {
echo '';
$bg = 'no';
}
elseIf ($bg == 'no') {
echo 'bgColor';
$bg = 'yes';
}
else {
echo 'error';
}
}

$bg = 'no';
?>

[bukwus]

Thank you. This works great.

Originally Posted by CrazeD

Your function works, however you have a scope problem. By default, functions don't inherit variables from the rest of the script. It has no idea that $bg was ever initialized.

To fix this, just add global $bg; to the top of your function.

PHP Code:

<?php
function backgroundColor() {
global $bg;
if ($bg == 'yes') {
echo '';
$bg = 'no';
}
elseIf ($bg == 'no') {
echo 'bgColor';
$bg = 'yes';
}
else {
echo 'error';
}
}

$bg = 'no';
?>