PHP Path issue running backticks/exec()

Question

I'm trying to run a java jar file from the command line and within the the execution it gives a path. Withing this path their are spaces and this is causing the issue.

ie

foreach($paths as $path):
$f = `java -jar /OCR/ocr.jar /Folder/$path /ocr/output.txt`;
echo "<pre>$output</pre>";
endforeach;

If you can see the space in between the Sub Folder name causes the issue.

By command line it would be (which works)

java -jar /OCR/ocr.jar /Folder/Sub\ Folder/filetoocr.pdf /ocr/output.txt

any suggestions how I can resolve this ??

Hope you can advise

Sorry I have now added a more real workld. As you can see path comes from a loop — Lee
– Lee, Commented Apr 15, 2010 at 12:41
I found the answer myself, Just adding quote around the path resolved the issue! ie, $f = java -jar /OCR/ocr.jar '/Folder/$path' /ocr/output.txt; — Lee
– Lee, Commented Apr 15, 2010 at 14:40

VolkerK · Accepted Answer · 2010-04-15 13:02:31Z

1

Use escapeshellarg():

escapeshellarg() adds single quotes around a string and quotes/escapes any existing single quotes allowing you to pass a string directly to a shell function and having it be treated as a single safe argument.

and maybe escapeshellcmd()

$cmd = sprintf(
  'java -jar %s %s %s',
  escapeshellarg('/OCR/ocr.jar'),
  escapeshellarg('/Folder/Sub Folder/filetoocr.pdf'),
  escapeshellarg('/ocr/output.txt')
);
echo 'Debug: cmd=', $cmd;

edited Apr 15, 2010 at 13:02

answered Apr 15, 2010 at 12:42

VolkerK

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Comments

susu · Accepted Answer · 2010-04-15 12:29:13Z

0

$f = "java -jar /OCR/ocr.jar /Folder/Sub\\ Folder/filetoocr.pdf /ocr/output.txt";
echo "<pre>$output</pre>";

or

$f = 'java -jar /OCR/ocr.jar "/Folder/Sub Folder/filetoocr.pdf" /ocr/output.txt';
echo "<pre>$output</pre>";

answered Apr 15, 2010 at 12:29

susu

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Comments

Your Common Sense · Accepted Answer · 2010-04-15 12:29:26Z

0

add the same \ in PHP?

answered Apr 15, 2010 at 12:29

Your Common Sense

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Pekka · Accepted Answer · 2010-04-15 12:29:39Z

0

Use quotes?

$f = `java -jar /OCR/ocr.jar '/Folder/Sub Folder/filetoocr.pdf' /ocr/output.txt`;

answered Apr 15, 2010 at 12:29

Pekka

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Comments

codaddict · Accepted Answer · 2010-04-15 12:30:02Z

0

Why not escape the space even in the back ticks:

$f = `java -jar /OCR/ocr.jar /Folder/Sub\ Folder/filetoocr.pdf /ocr/output.txt`;

answered Apr 15, 2010 at 12:30

codaddict

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