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Why doesn't my PHP function work as expected?

Php programming: why this function doesnt work?

  • <?php $d1="hello"; $t4="yes"; $t5="ok"; function abc($a,$b,$c) { if ($b="") { $c=$a; } else { $c=$b; } } abc($d1,$t3,$o1); abc($d2,$t4,$o2); abc($d3,$t5,$o3); echo $o1; echo $o2; echo $o3; ?>

  • Answer:

    function doesn't return values........make the variebles global

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Other answers

If you are trying to compare $b to an empty string, then you need to make that if($b == "") At the moment you are setting $b to an empty string. I hope this isn't homework!

diversenz

poojitra is right. what you send to the function are copies of your parameters, and what you change inside the function are not originals, but copies. you can do this: function abc($a, $b) { if ($b == "") $c=$a; else $c=$b; return $c; } $o2 = abc($d2, $t5); $o3 = abc($d3, $t5); better than making variables global IMHO

Bruno

COZ THERE ARE ONLY TWO QUESTION THERE & THE OTHER ONE IS BETTER

Sarang

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