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Basic PHP

Basic PHP
What will be the output of the following PHP code?
$color = "maroon";
$var = $color[2];
echo "$var";

a
Error
r
$var

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Basic PHP
Which of the following is not valid PHP code?

$10_somethings
$aVaR
$_10
${“MyVar”}
&$something

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Basic PHP
As the namespace size grows, using namespaces can become a little repetitious, but PHP also provides the . . . . . statement, which allows you to alias a specific namespace.

grant
label
php
use

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Basic PHP
Which of the below namespace declaration is correct?

namespace ORA;
namespace ORA_#;
namespace 1_RA;
namespace ORA:

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Basic PHP
Which of the below statements is equivalent to $add += $add ?

$add = $add + 1
$add = $add + $add + 1
$add = $add +$add
$add = $add

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Basic PHP
Which version of PHP introduced Try/catch Exception?

PHP 5
PHP 4
PHP 5.3
PHP 6

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