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@ 2013-10-14T06:24:40Z

<?php
    $a1 = array('a1','a2',
              'a3','a4');
foreach($a1 as $a1)
{
	$result='"'.implode("','",$a1).'"';
}

	echo $result;

Output
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implode: documentation ( source)

preferences:dark modelive preview

31.64 ms | 402 KiB | 5 Q