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Basic PHP

Basic PHP
PHP files have a default file extension of_______.

.xml
.ph
.html
.php

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Basic PHP
What will be the output of the following PHP code?
$a = 5;
$b = 5;
echo ($a === $b);

1
False
Error
5 === 5

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Basic PHP
Which statement will output $x on the screen?

echo “$$x”;
echo “$x;”;
echo “/$x”;
echo “\$x”;

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Basic PHP
What is the limit of a PHP integer value?

2147483647
1048576
16384
65536

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

$var
a
r
Error

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Basic PHP
Assigning the empty string (like ' ') to a variable automatically renders it empty.

False
True

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