What are the four scalar types of PHP?

Four scalar types of PHP

String

String is used for binary data. This can be text, content of an image file etc.

$today = 'hey how are you';

Int

For numeric values, Int is used. Int can contain a positive or a negative number.

$total = 20000000;

$temperature = -14 ;

Float

Float is used for numbers that have a fractional component. Float can also contain positive or negative values.

$length = 145.78;

$growthRate = -5.216;

Sometimes name Double is used for Float values.

Boolean

Boolean is used for values that are either true or false. You would often see Boolean values in conditional statements.

if (($age > 12) && ($age < 20)) {

$teenage = true;

} else {

$teenage = false;

}

//Some content goes here

if ($teenage) {

}