Common PHP Command‑Line Options and Script Development Guide

This guide lists essential PHP command‑line options and their purposes.

1. php -m – displays compiled modules.

2. php -v – shows the PHP version.

3. php --ini – shows the loaded configuration file.

4. php -h – displays available command‑line commands.

5. php --info – shows detailed information about classes, functions, and extensions, similar to the output of phpinfo() in a web server.

6. php --rf <name> – shows information about a specific function.

7. php --rc <name> – shows information about a specific class.

8. php --re <name> – shows information about a specific extension.

9. php --ri <name> – displays configuration information for the given extension.

10. php --rz <name> – displays information about a Zend extension.

The article also explains basic command‑line script development in PHP:

• $argv is an array containing the script name and all passed arguments.

• $argc holds the number of arguments.

Example script (index.php):

<?php
echo 'Command line argument count: ' . $argc . "
";
echo "Command line arguments:
";
foreach ($argv as $index => $arg) {
    echo "    {$index} : {$arg}
";
}

Running the script from the command line: php index.php 1 2 3 The output shows the argument count and lists each argument with its index.

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