The gettype Function

The gettype function returns a string indicating the type of the passed variable. It accepts one parameter - the variable whose type needs to be determined.

Syntax

phpgettype(mixed $var): string

Return Values

Example

Determining the type of an integer:

php<?php
  echo gettype(123);
?>

Code execution result:

php'integer'

Example

Determining the type of a floating point number:

php<?php
  echo gettype(3.14);
?>

Code execution result:

php'double'

Example

Determining the type of a string:

php<?php
  echo gettype('hello');
?>

Code execution result:

php'string'

Example

Determining the type of a boolean value:

php<?php
  echo gettype(true);
?>

Code execution result:

php'boolean'

Example

Determining the type of an array:

php<?php
  echo gettype(['a', 'b', 'c']);
?>

Code execution result:

php'array'

Example

Determining the type of NULL:

php<?php
  echo gettype(null);
?>

Code execution result:

php'NULL'

Example

Let's check the variable type after conversions:

php<?php
  $var = '123';
  echo gettype($var) . "\n";
  
  $var = (int)$var;
  echo gettype($var) . "\n";
  
  $var = (float)$var;
  echo gettype($var) . "\n";
?>

Code execution result:

php'string'
'integer'
'double'

See Also