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PHP code:

class A
{
function Foo()
{
echo 'In foo...'
}
}
$test = new A();
function Bar($what)
{
$what();
}


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Bar($test->Foo());

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call_user_func(array('A','Foo'))


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PHP code:

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class A
{
    function Foo()
    {
        echo 'In foo...';
    }
}
$test = new A();
function Bar($what)
{
    $GLOBALS['test']->$what();
}

bar('foo');


<?php
class A
{
 


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PHP code:

$date = '2009-12-25';
$ptn = '/([\d]{4})[- \/](0?[\d]|1[0-2])[-\/ ](0?[\d]|[1-2][\d]|3[0-1])/';
if (preg_match($ptn,$date,$out))
{
print_r($out);exit();
}
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PHP code:
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