- Tags: Keyword
- Categories: PHP Keywords, PHP Reference, Reference
Quick Reference
The PHP instanceof keyword is used to check if an object belongs to a class, and returns true if the object is an instance of the class or false if not.
<?php
class my_class {}
class another_class extends my_class{}
$obj = new another_class();
if($obj instanceof another_class) {
echo 'The object is another_class';
}
if($obj instanceof my_class) {
echo 'The object is my_class';
}
?>
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PHP NOTES:
- When using PHP, single or double quotation marks are acceptable and work identically to one another; choose whichever you prefer, and stay consistent
- Arrays count starting from zero NOT one; so item 1 is position [0], item 2 is position [1], and item 3 is position [2] … and so on
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