PHP Online Compiler

Write, Run & Share PHP code online using OneCompiler's PHP online compiler for free. It's one of the robust, feature-rich online compilers for PHP language, running on PHP 8.3. Getting started with the OneCompiler's PHP compiler is simple and pretty fast. The editor shows sample boilerplate code when you choose language as PHP and start coding.

Taking inputs (stdin)

OneCompiler's PHP online editor supports stdin and users can give inputs to programs using the STDIN textbox under the I/O tab. Following is a sample PHP program which takes name as input and prints hello message with your name.

<?php
fscanf(STDIN, "%s\n", $name);
echo "Hello ".$name.".\n";
?>

About PHP

PHP (Hypertext Preprocessor) is a widely used server scripting language created by Rasmus Lerdorf in the year 1994.

Key features

Free
Online
Real-time output
Easy & fast
No setup or installation required

Variables

In PHP, there is no need to explicitly declare variables to reserve memory space. When you assign a value to a variable, declaration happens automatically. Variables are case-sensitive in PHP.

$variable_name = value;

Loops

1. IF Family:

If, If-else, Nested-Ifs are used when you want to perform a certain set of operations based on conditional expressions.

If

if(conditional-expression){
  //code
}

If-else

if(conditional-expression){
  //code if condition is true
} else {
  //code if condition is false
}

4. While:

While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.

while(condition) {
  // code
}

5. Do-While:

Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements at least once.

do {
  // code
} while (condition);

Functions

Function is a sub-routine which contains a set of statements. Usually functions are written when multiple calls are required to the same set of statements which increases re-usability and modularity.

function function_name(parameters) {
  //code
}