Zend PHP 5.3 Certification Exam - ZCE - What is the output of: - #451

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Question 21/69
What is the output of:
```
<?php
$a = "0";
echo strlen($a);
echo empty($a) ? $a : 5;
echo $a ?: 5;
?>
```
105

100

050

005

150

Strlen($a) is 1, then empty($a) is true, so we hit the first leg of the ternary and echo $a, which is zero. The third digit comes from the final line, $a is evaluated as false so we echo 5.

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