Detecting the data type of a PHP variable
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 |
Tags: PHP, PHP Tutorials
Hi everyone im 
November 28th, 2008 at 5:19 pm
[...] the original here: Detecting the data type of a PHP variable Related ArticlesBookmarksTags PHP PHP is a computer scripting language. Originally [...]
November 28th, 2008 at 9:42 pm
*nosebleed. hehehe
daniel’s last blog post..50 Random Stuff’s about Me.
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Daniel Dumas (79 comments.) Reply:
November 29th, 2008 at 12:27 am
weeeeeeee
heheh 
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December 30th, 2008 at 10:38 pm
I hope you had a wonderful christmas and a prosperous 2009. More blessings to all of us. Cheers!!
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January 22nd, 2009 at 4:48 pm
What about splitting obvious string “we have 20 goats”?
This one is a string but after splitting to tokens with spaces would 20 still be a string or a integer when checking with gettype?
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