Practical solutions

PHP Howtos How-To Guides

Solve the problem. Keep building. Collection of PHP how-to articles

Find the answer you need

Browse practical solutions, grouped by the task you're working on.

__COUNT__ entries on this page

How to Create a Webhook in PHPBuild a PHP endpoint that receives a webhook POST, validates its JSON payload, and can be tested locally. How to Check for Numerical Characters in PHPLearn how PHP digit, pattern, numeric-string, and integer checks differ, and choose the rule that matches your input. How to Get Headers in PHPLearn how to retrieve response headers for a URL and request headers received by a PHP server. How to Convert a String Into an Array in PHPLearn how to convert a PHP string into an array: use explode() to split on a delimiter such as a comma, or str_split() to cut the string into fixed-size chunks. How to Get Time Zone in PHPThis tutorial demonstrates how to work with time zones in PHP using built-in functions. Learn how to retrieve the default time zone, set a custom one, and use an explicit time zone identifier selected by your application. PHP does not derive an identifier from a city or address. Explore how to list available identifiers for user selection. The utf8_encode Function in PHPThis article introduces the utf8_encode function in PHP, explaining its purpose in converting ISO-8859-1 encoded strings to UTF-8. Learn how to use this function effectively with practical examples to enhance your web applications and ensure proper character representation. How to Get the Current Full URL in PHPThis tutorial introduces how to get the current URL in PHP How to Get User IP Address in PHPThis tutorial demonstrates how to get the user's IP address in PHP How to Get JSON Object From URL in PHPThis tutorial introduces how to get JSON object from URL in PHP Date Format in PHP for Insertion in MySQLThis article will introduce how to format date in PHP, before inserting it to MySQL. How to Achieve Multithreading in PHPCompare PHP threads with the parallel extension and separate processes started by popen(). Object Operator in PHPLearn how PHP's object operator (->) reads and assigns object properties, calls methods, and handles dynamic property names, visibility, and missing properties. How to Extract Numbers From a String in PHPThis article introduces how to extract numbers from a string in PHP. It includes preg_match_all() function, filter_var() function and preg_replace() function. How to Replace String in PHPThis article introduces how to replace part of a string in PHP using the str_replace() function. Learn the syntax, explore practical examples, and discover tips for effective string manipulation. Whether you're a beginner or an experienced developer, this guide will enhance your PHP coding skills and improve your string handling capabilities. PHP ini_set Memory LimitChoose a script-level or shared PHP memory limit, inspect the effective value, and verify the change. How to Read Text Files in PHPLearn three practical ways to read text files in PHP, with examples and guidance on memory use and line endings. How to Find Root Directory Path in PHPThis tutorial introduces how to find the root directory path of the PHP project How to Get Yesterday's Date in PHPIt introduces how to get yesterday's date in PHP. How to Remove Duplicate Values From an Array in PHPThis article introduces how to remove duplicate values from an array in PHP. It includes array_unique() function. How to Delete Database in PHPMyAdminThis tutorial introduces how to delete the database in phpMyAdmin How to Create Countdown Timer in PHPThis tutorial will introduce how to create a countdown timer in PHP PHP Socket IOThis tutorial demonstrates how to implement socket.io in PHP. How to Get Time Difference in Minutes in PHPLearn how to calculate elapsed minutes and calendar date differences in PHP with DateTimeImmutable, date_diff(), and strtotime(). How to Write Multi-Line Strings in PHPLearn to write multiline PHP strings with heredoc, nowdoc, newline escapes, and PHP_EOL.