How to fix: Warning: Invalid argument supplied for foreach()

Posted by Codehead on August 20, 2008 at 11:06 pm · Under PHP, Web Development

This warning happens only if you try to use foreach on a non array like:

$myvar = 10;
foreach ($myvar as $value) {}

If you run this, you will get:

Warning: Invalid argument supplied for foreach() in YOUR_FILE on line FOREACH_LINE

To fix this just cast $myvar to array like this:

$myvar = 10;
foreach ((array) $myvar as $value) {}

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