PHP Tutorial

A web server programming language.

Chapter Quiz Exercises
Course Topics
PHP Intro PHP Syntax PHP Variables PHP Echo / Print PHP Data Types PHP Strings PHP Numbers PHP Math PHP Constants PHP Operators PHP If...Else...Elseif PHP Switch PHP Loops PHP Functions PHP Arrays PHP Superglobals PHP Form Handling PHP Date and Time PHP File Handling PHP Cookies PHP Sessions PHP Exceptions PHP OOP Classes & Objects PHP Constructor MySQL Connect MySQL Insert Data MySQL Select Data PHP JSON PHP Regular Expressions PHP Include & Require

PHP Numbers

PHP Numbers

One thing to notice about PHP is that it provides automatic data type conversion. So, if you assign an integer value to a variable, the type of that variable will automatically be an integer.

Number Checking Functions:

  • is_int() - Check if variable is integer
  • is_float() - Check if variable is float
  • is_numeric() - Check if variable is numeric or a numeric string

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Topics
PHP Intro PHP Syntax PHP Variables PHP Echo / Print PHP Data Types PHP Strings PHP Numbers PHP Math PHP Constants PHP Operators PHP If...Else...Elseif PHP Switch PHP Loops PHP Functions PHP Arrays PHP Superglobals PHP Form Handling PHP Date and Time PHP File Handling PHP Cookies PHP Sessions PHP Exceptions PHP OOP Classes & Objects PHP Constructor MySQL Connect MySQL Insert Data MySQL Select Data PHP JSON PHP Regular Expressions PHP Include & Require