How to execute PHP code from the command line

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I would like to execute a single php statement like if(function_exists("my_func")) echo 'function exists'; directly with the command line without having to use a seperate php file.

How is it possible ?
Oct 1, 2020 in PHP by kartik
• 37,490 points
70 views

1 answer to this question.

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Hello @kartik,

the php command offers two switches to execute code from the command line:

-r <code>        Run PHP <code> without using script tags <?..?>
-R <code>        Run PHP <code> for every input line

You can use php's -r switch as such:

php -r 'echo function_exists("foo") ? "yes" : "no";'

The above PHP command above should output no and returns 0 as you can see:

>>> php -r 'echo function_exists("foo") ? "yes" : "no";'
no
>>> echo $? # print the return value of the previous command
0

HOpe it helps!!

Thank you!!

answered Oct 1, 2020 by Niroj
• 82,540 points

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