asked on
Passing PHP variables to shell program through shell_exec
I need to convert multiple ksh based .cgi files to php. The shell_exec function appears to be just what I'm looking for since I need to utilize the standard shell tools like grep and awk.
It seems to work for me if I hard code what I'm looking for but doesn't recognize a variable passed from the PHP script:
This is a piece of script provided by liveaspankaj last year. It has been modified to my needs. The major issue is the $memberid variable is not recognized by grep. Hardcoding the memberid works. Quotes or no quotes are irrelevent. I need to know how to enter the variable name so grep ( or any other program ) called by shell_exec can recognize it.
Also, pipeing ithe results to awk like this results in the entire record being displayed instead of the first field. If I can get these two issues resolved, it will be a big step in getting all my files re-written and i would be extremely grateful.
$output = shell_exec('grep "$memberid" MembersOnly/members.csv | awk -F, "{print $1}" | head -1');
It seems to work for me if I hard code what I'm looking for but doesn't recognize a variable passed from the PHP script:
This is a piece of script provided by liveaspankaj last year. It has been modified to my needs. The major issue is the $memberid variable is not recognized by grep. Hardcoding the memberid works. Quotes or no quotes are irrelevent. I need to know how to enter the variable name so grep ( or any other program ) called by shell_exec can recognize it.
Also, pipeing ithe results to awk like this results in the entire record being displayed instead of the first field. If I can get these two issues resolved, it will be a big step in getting all my files re-written and i would be extremely grateful.
$output = shell_exec('grep "$memberid" MembersOnly/members.csv | awk -F, "{print $1}" | head -1');
Scripting Languages
Last Comment
dkauger
ASKER CERTIFIED SOLUTION
THIS SOLUTION ONLY AVAILABLE TO MEMBERS.
View this solution by signing up for a free trial.
Members can start a 7-Day free trial and enjoy unlimited access to the platform.
ASKER
I've requested that this question be closed as follows:
Accepted answer: 0 points for dkauger's comment #a38754647
for the following reason:
The submitted solution was only partially correct.
Accepted answer: 0 points for dkauger's comment #a38754647
for the following reason:
The submitted solution was only partially correct.
This is what worked for me:
$output = shell_exec("grep $memberid MembersOnly/members.csv | awk -F, '{print $1}' ");
I appreciate the help and hopefully I can take it from here. The rest will be learning PHP :-)