I am using the following code to initiate a python script and pass a php variable to it.
$tmp = exec("python path/to/pythonfile.py $myVariable $mySecondVariable", $output);
This works very well, my issue is that I will need to pass 100+ variables to the python script. I don't want this exec line to become extremely long and unmanageable. I have also explored passing a php array instead of a variable with the following code:
$checked = array( "key1" => "1" "key2" => "1" "key3" => "1" ); $checkedJson = json_encode($checked); $tmp = exec("python path/to/pythonfile.py $myVariable $checkedJson", $output);
With this I have been unable to decode the JSON on the python side. I have been able to do a basic print of the array variable(undecoded) in python, but it gives every individual character as a new array value. ie [0] = k, [1] = e, [2] = y, [3] = 1, etc... Any help is greatly appreciated.
Just to be clear,I am looking for a simpler method than encoding and decoding an array. Is there a way I can format the exec line to allow for multiple variables.
Store your PHP variables within a temporary text file then use python to read that file.
Simple and effective.
Assuming Scripts are in the same directory
PHP Portion
long version (self contained script - skip to the short version below if you only want the code snippet)
<?php #Establish an array with all parameters you'd like to pass. #Either fill it manually or with a loop, ie: #Loop below creates 100 dummy variables with this pattern. #You'd need to come up with a way yourself to fill a single array to pass #$variable1 = '1'; #$variable2 = '2'; #$variable3 = '3'; #.... #$variableN = 'N'; #... for ($i=1; $i<=100; $i++) { ${'variable'.$i} = $i; } #Create/Open a file and prepare it for writing $tempFile = "temp.dat"; $fh = fopen($tempFile, 'w') or die("can't open file"); #let's say N=100 for ($i=1; $i<=100; $i++) { #for custom keys $keyname = 'Key'.$i; # using a variable variable here to grab $variable1 ... $variable2 ... $variableN ... $variable100 $phpVariablesToPass[$keyname] = ${'variable'.$i} + 1000; } #phpVariablesToPass looks like this: # [Key1] => 1001 [Key2] => 1002 [Key3] => 1003 [KeyN] = > (1000+N) #now write to the file for each value. #You could modify the fwrite string to whatever you'd like foreach ($phpVariablesToPass as $key=>$value) { fwrite($fh, $value."\n"); } #close the file fclose($fh); ?>
or in short, assuming $phpVariablesToPass is an array filled with your values:
#Create/Open a file and prepare it for writing $tempFile = "temp.dat"; $fh = fopen($tempFile, 'w') or die("can't open file"); foreach ($phpVariablesToPass as $key=>$value) { fwrite($fh, $value."\n"); } fclose($fh);
Python Snippet to Grab the Data
lines = [line.strip() for line in open('temp.dat')]
the variable lines now contains all of your php data as a python list.
