How do I check the data type of a variable

In PHP, you can check the data type of a variable using the gettype() function or the var_dump() function. Below is an example of how to use both functions to check the data type of a variable:


    <?php
    $var1 = 10;
    $var2 = "Hello, World!";
    $var3 = 3.14;
    $var4 = true;

    // Using gettype()
    echo "Data type of var1: " . gettype($var1) . "<br>";
    echo "Data type of var2: " . gettype($var2) . "<br>";
    echo "Data type of var3: " . gettype($var3) . "<br>";
    echo "Data type of var4: " . gettype($var4) . "<br>";

    // Using var_dump()
    var_dump($var1);
    var_dump($var2);
    var_dump($var3);
    var_dump($var4);
    ?>