On 21 June 2010 00:45, Rick Pasotto <[email protected]> wrote:
> Within a class function I have defined another function for use with the
> usort() function. How do I reference it?
>
> When it's not part of a class usort($arr,"cmp") works fine but when it's
> within a class function I get this error:
>
> PHP Parse error: syntax error, unexpected T_STRING, expecting T_FUNCTION
>
> Is it not in the scope of the class function?
>
> --
> "Memory is like an orgasm. It's a lot better if you don't have to fake it."
> -- Seymour Cray (on virtual memory)
> Rick Pasotto [email protected] http://www.niof.net
>
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>
<?php
class foo {
public $array = array(3,2,1);
private function cmp($a, $b) {
return $a === $b ? 0 : ($a < $b ? -1 : 1);
}
public function bar() {
usort($this->array, array($this, 'cmp'));
}
}
$baz = new foo();
$baz->bar();
print_r($baz->array);
or
<?php
class foo {
public $array = array(3,2,1);
public function bar() {
usort($this->array, function($a, $b) {
return $a === $b ? 0 : ($a < $b ? -1 : 1);
});
}
}
$baz = new foo();
$baz->bar();
print_r($baz->array);
if you have closures available to you.
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