Running PHP code/scripts on the command line

I just began learning PHP. I've installed php5 on Linux and wrote very s开发者_如何学Cimple code just to get going.

How can I run scripts? I tried using the -f option, but it works as a cat command and just spits out the code to standard output.

The interactive interpreter option works fine. Is a web browser the only way to execute a PHP script?

A simple:

php myScript.php

… should do the job.

If it is acting like cat, then you probably forgot to switch out of template mode and into script mode with <?php

Shorter way for command line:

php -r 'echo "Hello "; echo "Jay";'
OR
php -r 'echo dirname("parent/child/reply") . "\n";'

As already mentioned, you can execute your PHP with the following.

php myScript.php

If you wish to pass an argument(s), you can simply do so like this:

php myScript.php Apples

In your PHP file you can use this argument by accessing the $argv array like this:

<?php
    echo 'I like ' . $argv[1];
?>

The above would print our "I like Apples". Note the array index is 1 and not 0. 0 is used for script name. In this case $argv would be "myScript.php"

For more information, check out my blog post Running PHP from the Command Line - Basics.

Actually, PHP's main purpose is to generate web pages, but there are at least two other options:

• command line (CLI) script execution,
• interactive shell - which is actually the variant of the previous option,

The first one can be achieved in many ways (eg. by giving proper permissions to the file and calling script by providing its URI, eg. ./index.php), the second one can be invoked by php -a command (as stated in the documentation mentioned above).