exec('unzip gallery.zip',$return); php

can any开发者_如何学Go one please let me know, why i could not get result for the php function

exec('unzip gallery.zip',$return);
print_r($return);

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Did you check the return value from unzip? Error messages are not given on standard output stream, so the array will be empty if something fails.

<?php
    $result = array();
    exec("unzip archiv.zip", $result, $returnval);
    print_r($result);
    print_r($returnval);
?>

Does the unzip work as expected? It might ask for overwriting etc. if the files already exist and stop the workflow. This output will not be captured in the result.

---

Have you initialized variable $return before use?

Have you installed package unzip if you're running Unix or Linux? (I'm not sure that you can do that on Windows)

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Errors are written to stderr and aren't shown when using exec, backticks or shell_exec functions.

passthru() does output the error stream (as well as stdout).

Ps : Its probably either:

File not found: Does gallery.zip exists in the cwd. Use absolute paths and escapeshellarg() te be sure.

or

File rights: Is php allowed to write the extracted files to the cwd or specified targetpath?