Detecting the data type of a PHP variable
Posted by Daniel at 4:47 pm
Detecting the datatype of a specific PHP variable can be done by using PHP gettype() function. refer below for example.
<?php //define variables $on = true; $age = 20; $name = "daniel"; $price = 99.99; //Returns Boolean echo gettype($on); //Returns String echo gettype($name); //Returns Integer echo gettype($age); //Returns Double echo gettype($price); ?>
You can also use other PHP functions to determine the datatypes of a variable
| FUNCTION NAME | |
|---|---|
is_bool() |
Checks if a variable is a BOOLEAN |
is_string() |
Checks if a variable is a STRING |
is_numeric() |
Checks if a variable is a NUMERIC STRING |
is_int() |
Checks if a variable is an INTEGER |
is_array() |
Checks if a variable is an ARRAY |
is_object() |
Checks if a variable is an OBJECT |
is_null() |
Checks if a variable is NULL |
is_float() |
Checks if a variable is a FLOAT |
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