Gets the type name of a variable in a way that is suitable for debugging
Syntax
get_debug_type(mixed $value): string
Parameters
value
The variable being type checked.
Return
Possible values for the returned string are:
Type + State | Return | Notes |
---|---|---|
null | "null" | |
Booleans (true or false) | "bool" | |
Integers | "int" | |
Floats | "float" | |
Strings | "string" | |
Arrays | "array" | |
Resources | "resource (resourcename)" | |
Resources (Closed) | "resource (closed)" | A file stream after being closed with fclose |
Objects from Named Classes | The full name of the class including its namespace | |
Objects from Anonymous Classes | "class@anonymous" | Anonymous classes are those created through the $x = new class { ... } syntax |
Examples
1
<? echo get_debug_type(null) . PHP_EOL; echo get_debug_type(true) . PHP_EOL; echo get_debug_type(1) . PHP_EOL; echo get_debug_type(0.1) . PHP_EOL; echo get_debug_type("string") . PHP_EOL; echo get_debug_type([]) . PHP_EOL; $fp = fopen(__FILE__, 'rb'); echo get_debug_type($fp) . PHP_EOL; fclose($fp); echo get_debug_type($fp) . PHP_EOL; echo get_debug_type(new stdClass) . PHP_EOL; echo get_debug_type(new class {}) . PHP_EOL; ?>
null bool int float string array resource (stream) resource (closed) stdClass class@anonymous