$privilegeStrings = array_filter($privileges, function ($s) { return is_string($s); } );
Is there a better way to specify that I want just the string values in the given array?
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You could do:
$privilegeStrings = array_filter($privileges, 'is_string');
array_filter passes every value of the array to the specified function. So you can just specify the function name and everything will be taken care of.
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\$\begingroup\$ Ah.. didn't know you could pass the name of a function like that. Yuck! \$\endgroup\$ Commented Mar 3, 2011 at 20:58
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2\$\begingroup\$ @Billy ONeal - The name of a function is one acceptable form a callback may take. \$\endgroup\$ Commented Mar 4, 2011 at 3:19