Print variable types

Print the type of the variable or just print the variable

Print the type of the variable

PHP

PHP gettype()^[1]:

# define the variable
$var = 3.14159;

# print type of the variable
echo "type of variable: " . gettype($var);

Python

Python type():^[2]^[3] or print(type(var))

# define the variable
var = 3.14159

# print type of the variable
type(var) # return <class 'type'>
print(type(var))
print("type of variable: " + str(type(var))) # python v. 3 cast type to string

Javascript

Javascript typeof()^[4]

# define the variable
var a = 3.14159;

# print type of the variable
typeof a;
console.log("type of variable:: " + typeof a);

R

R: typeof()

Print the variable

PHP

# define the variable
$var = 3.14159;

echo print_r($var, true) . PHP_EOL;
var_dump($var);

Python

# define the variable
var = 3.14159

print(var)) # python v. 3

Iterate over elements of an array or list

PHP

PHP: Using foreach to iterate over elements of an array or public properties of an object^[5].

Code:

# type: array
$animals = ["bird", "dog", "bird"];
foreach ($animals as $index => $animal) {
  print "$index $animal"  . PHP_EOL;
}

Result:

0 bird
1 dog
2 bird

Python

Code:

# type: list
animals = ['cat', 'dog', 'bird'] 
for index, animal in enumerate(animals):
    print (index, animal)

Result:

0 bird
1 dog
2 bird

Print variable types

Contents

Print the type of the variable

PHP

Python

Javascript

R

Print the variable

PHP

Python

Iterate over elements of an array or list

PHP

Python

References

Related articles

Navigation menu

Print variable types

Print the type of the variable

PHP

Python

Javascript

R

Print the variable

PHP

Python

Iterate over elements of an array or list

PHP

Python

References

Related articles

Navigation menu

Search