Know the Code

Developing & Empowering WordPress Developers

You are here: Home / Docx / is_numeric

is_numeric

The What

Syntax

bool is_numeric ( mixed $var )

is_numeric in PHP Manual

Description

Finds whether the given variable is numeric. Numeric strings consist of optional sign, any number of digits, optional decimal part and optional exponential part. Thus +0123.45e6 is a valid numeric value. Hexadecimal (e.g. 0xf4c3b00c), Binary (e.g. 0b10100111001), Octal (e.g. 0777) notation is not allowed.

Your best friend is code, Tonya is making the introductions.

More coming soon…keep checking back.

We're giving you the keys to build whatever you want in code.
Get Started

Know the Code develops and empowers professional WordPress developers, like you. We help you to grow, innovate, and prosper.

Know the Code flies on WP Engine. Check out the managed hosting solutions from WP Engine.

WordPress® and its related trademarks are registered trademarks of the WordPress Foundation. The Genesis framework and its related trademarks are registered trademarks of StudioPress.
This website is not affiliated with or sponsored by Automattic, Inc., the WordPress Foundation, or the WordPress® Open Source Project.