How do I convert a string to a number in PHP?

In PHP, you can convert a string to a number (either integer or float) using various methods:

1. Implicit Conversion:

PHP automatically converts a string to a number when performing mathematical operations. For example:

$string = “123”;
$number = $string + 0; // Implicitly converts string to number
echo $number; // Outputs: 123

2. Using intval():

For integers, you can use the intval() function:

$string = “123”;
$number = intval($string);
echo $number; // Outputs: 123

3. Using floatval():

For floating-point numbers, use floatval():

$string = “123.45”;
$number = floatval($string);
echo $number; // Outputs: 123.45

These functions allow you to convert strings to numbers explicitly in PHP.