PHP Functions Essential Reference

is_object

bool is_object(mixed value) 

Tests whether a value is an object.

Returns:

TRUE if the value is an object; FALSE otherwise

Description:

is_object() checks whether value is an object. If so, the function returns TRUE. If not, FALSE is returned.

Availability:

UNIX, Windows

Version:

3+, 4+

See also:

gettype() 

Examples:

Test whether a single value is an object

// Define a class to use in testing class test {} // Instantiate the class $test = new test (); is_object ($test) or die ('Variable $test is not a class');

Test whether a few different values are objects

<pre> <?php // Define an empty class to use in testing class test {} $test = new test (); // Make a list of values to test $values = array ( 'new test ()' => new test (), 'TRUE' ...