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PHP Functions

PHP Functions
What will be the output of the following PHP code?
echo(atan(0.50));

0.11845976421345
0.23568451142521
1
0.46364760900081

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PHP Functions
What will be the output of the following PHP code?
function sayHello() {
echo "HelloWorld";
}
$function_holder = "sayHello";
$function_holder();

No Output
sayHello
HelloWorld
Error

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PHP Functions
What will be the output of the following PHP code ?
function test($int)
{
if ($int == 1)
echo "This Works";
if ($int == 2)
echo "This Too Seems To Work";
}
test(1);
TEST(2);

ERROR
This WorksThis Too Seems To Work
This Works
This Too Seems To Work

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PHP Functions
. . . . returns a new DateTime object.

date()
date_create()
date_sunrise()
getdate()

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PHP Functions
What will be the output of the following PHP code ?
$x = 75;
$y = 25;
function addition()
{
$GLOBALS['z'] = $GLOBALS['x'] + $GLOBALS['y'];
}
addition();
echo $z;

25
75
error
100

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PHP Functions
What will be the output of the following PHP code ?
function string()
{
echo strstr("Hello world!", 111);
}
string();

No Output
111
o world!
Hello world!

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