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PHP Tutorials - page 3

A collection of tutorials for learning PHP.

  1. Count the Number of Characters in a String in PHP
    How to count the number of characters in a multi-byte string using PHP.
  2. Beware of preg_replace and Disappearing Backslashes
    Backslashes in replacement string seem to disappear when the replacement is done using preg_replace
  3. Custom Error Handler in PHP
    How to create a custom error handler for PHP that handles non-fetal errors.
  4. PHP: Named Arguments
    PHP does not have named parameters build-in, but in this tutorial you can learn how to simulate the functionality with a bit of extra code.
  5. Using Preg_match to Validate Input in PHP
    How to properly validate input from PHP using preg_match, and avoid undefined notices.
  6. PHP: Check If A File Was Included
    How to get a list of included files and know if a certain file was included by PHP.
  7. PHP: How to Find Common Multiples
    Lean to find the common multiples between two numbers in PHP; the tutorial starts by teaching you about multiples, then moves on to common multiples.
  8. PHP: Check if Number is a Decimal Number
    This tutorial shows how to check if a number is a decimal number using the PHP floor function.
  9. PHP: Accessing Other Classes Properties and Methods
    We can access other classes properties (variables) and methods (functions) by injecting the class object in the class that needs it.
  10. PHP: file_get_contents vs cURL
    Should you use file_get_contnts or cURL when performing HTTP requests from PHP? It does not matter; but regardless of which you use, you should still handle errors properly!