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Web Technologies-I

Notes echo $name1, $age1, “\n”;
echo $name2, $age2, “\n”;
?>
If we do not assign a literal to a variable, there is no way how we can work with it. It is dropped.
$ php literals.php

Piyush 22
Rahul 22
Piyush 25

Seema 24
This is the output of the literals.php script.
Operators

An operator is a symbol used to perform an action on some value.
+ – * / % ++ ––
= += –= *= /= .= %=

== != >< > < >= <=
&& || ! xor or
& ^ | ~ . << >>
These are PHP operators.

Delimiters
A delimiter is a sequence of one or more characters used to specify the boundary between separate,
independent regions in plain text or other data stream.
$a = “PHP”;
$b = ‘Java’;

The single and double characters are used to mark the beginning and the end of a string.
function setDate($date) {
$this->date = $data;
}

if ( $a > $b) {
echo “\$a is bigger than \$b”;

}
Parentheses are used to mark the function signature. The signature is the function parameters.
Curly brackets are used to mark the beginning and the end of the function body. They are also
used in flow control.
$a = array(1, 2, 3);

echo $a[1];
The square brackets are used to mark the array index.

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