PHP intval | How to Covert PHP string to int with Example?

Summary: in this article, you will learn How to Covert PHP string to int(integer) with Example? In this guide, I will show you four different methods to accomplish this, such as-

• 1st method: using number_format() Function
• 2nd method: using intval() and floatval() Function
• 3rd method: using type casting
• 4th method: By adding 0 or by performing mathematical operations.

Answer: To Covert PHP string to int

Strings in PHP can be converted to numbers (float/int/double) terribly simple. In most use cases, it won’t be needed since PHP does implicit type conversion. There are many methods to convert PHP string to integer. but here, I will discuss four methods as given below:

I-method: Using number_format() Function

Using PHP number_format() Function. The number_format() function in PHP is used to convert the string into a number. furthermore, it returns the formatted number on success otherwise it will give E_WARNING on failure.
Example:

Output:

II-method: Using intval() and floatval() Function

To convert the string into its corresponding integer(int) and float values respectively used PHP intval() and floatval() Function. let’s see the example.
Example:

Output:

III-method: Using type casting

Typecasting can directly convert a string into a float, double, or integer primitive type. This is the most effective and best way to convert a string into a number without any function.

Output:

As we all know that PHP doesn’t need or support explicit type definition in variable declaration. furthermore, you can force a variable to be evaluated as a certain type using the typecasting method.
Let’s see another example to understand how this works:

Output:

You can use (int) or (integer) to cast a variable to an integer, use (float), (double), or (real) to cast a variable to float. Similarly, you’ll be able to use the (string) to cast a variable to string, and so on.
The gettype() function in PHP returns "double" in the case of a float for historical reasons.
Alternatively, you can also use the PHP intval() function to get the integer value of a variable.

IV-method: By adding 0 or by performing mathematical operations

By adding 0 or by performing mathematical operations. Therefore, the string number can also be converted into an integer(int) or float by adding 0 with the string. furthermore, in PHP, performing mathematical operations, the string is converted to an integer(int) or float implicitly.

Output:

PHP string to int conclusion

In this article, you have learned the conversion of PHP string to an integer using four different methods for example. I hope you will enjoy it!. if have any query then contact on info@tutorialscan.com I will try to resolve the problem.