How to check if PHP script is running by shell

Question

Possible Duplicate:
In php, how to detect the execution is from CLI mode or through browser?

How can I check if a PHP script is running by Shell (command line) or by a server?

I'm checking some indexes um `$_SERVER`, but not sure whats the best method. — paulodiovani, Nov 26 '12 at 17:24
I'm using `preg_match('/^HTTP.*$/i', $_SERVER['SERVER_PROTOCOL'])` to see if it runs by an http server, but I don't want to just consider otherwise to be by shell. — paulodiovani, Nov 26 '12 at 17:26
Sure, @MrGlass, that it. Couldn't find the question. Thanks. — paulodiovani, Nov 26 '12 at 17:27

MrCode · Accepted Answer · 2012-11-26T17:27:32.153

11

Use the php_sapi_name function:

if(php_sapi_name() == 'cli')
{
    // running from CLI
}

From the Manual:

Returns a lowercase string that describes the type of interface (the Server API, SAPI) that PHP is using. For example, in CLI PHP this string will be "cli" whereas with Apache it may have several different values depending on the exact SAPI used. Possible values are listed below.

edited Nov 26 '12 at 17:27

answered Nov 26 '12 at 17:25

MrCode

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hi @mrCode is iot possible to run a CLI command inside a php function in form of a snippet ? using shell_exec() ? – Fasih Sajid Dec 20 '20 at 11:30

gbtimmon · Answer 2 · 2012-11-26T17:37:08.180

7

Heres a shell solution if you are really interested in that :

ps -ef | grep $scriptname | grep -v grep;
if [[ $? -eq 0 ]]; then
    echo "PROCESS IS RUNNING";
fi

Explination :

ps -ef            ## lists all running processes
grep $scriptname  ## keep only the process with the name we suppply
grep -v grep      ## the previous grep will show up in the ps -ef so this prevents false positives.  

if [[ $? -eq 0 ]]; then
    echo "PROCESS IS RUNNING";
fi                    ## if the last line returns something then process is running.

edited Nov 26 '12 at 17:37

answered Nov 26 '12 at 17:27

gbtimmon

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@BrendanLong Added a step by step explination to the answer. – gbtimmon Nov 26 '12 at 17:38
I'm still confused about how this answers the question. Was the posted to the wrong question by any chance? – Brendan Long Nov 26 '12 at 17:53
Its how to tell if a PHP script with $filename is running by Shell (command line). Excuse me if that is not what the op was looking for. – gbtimmon Nov 26 '12 at 18:02
excellent answer thanks – D34DlyM4N Feb 20 '20 at 10:23

score 2 · Answer 3 · answered Nov 26 '12 at 17:25

2

You can check for the presence of the $argv variable.

Or

You can check for these:

if(isset($_SERVER['HTTP_USER_AGENT']) && strpos($_SERVER['HTTP_USER_AGENT'],"CLI") !== FALSE) {
 ///
}

answered Nov 26 '12 at 17:25

Ibu

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score 1 · Answer 4 · answered Nov 26 '12 at 17:37

1

this works in my product environment:

if( substr(php_sapi_name(), 0, 3) == 'cli' ) {
    die("You Should Use CGI To Run This Program.\n");
}

answered Nov 26 '12 at 17:37

dennisyuan

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Is the `substr` really necessary? – Brendan Long Nov 26 '12 at 17:52
I have tested the php_sapi_name function on Debian 9 with PHP 7.0 and with systemd services/timers, cron jobs and manually running /usr/bin/php in the cli they all return a value of 'cli'. So it seems like currently the substr isn't actually necessary. A comment on the documentation page says that cron jobs return a value of cli-fcgi, but I guess that isn't true anymore. – Infineight May 02 '19 at 10:02

How to check if PHP script is running by shell

4 Answers4