drny60365 2012-09-12 16:17
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命令通过终端工作正常,但不是shell_exec php

Got a weird issue i have installed wav2png on my mac osx with lion now and works fine when using terminal no problem but when i try to run it using shell_exec with php like below

$wav2png = shell_exec("cd {$targetDir} && /usr/bin/wav2png --foreground-color=000000ff --background-color=00000000 -o example2.png f86150f88d.wav 2>&1");
echo "<pre>" . $wav2png . "</pre>";

I get the output

dyld: Library not loaded: /opt/local/lib/libpng15.15.dylib
  Referenced from: /usr/bin/wav2png
  Reason: Incompatible library version: wav2png requires version 28.0.0 or later, but libpng15.15.dylib provides version 23.0.0

Cant find a way to update libpng???

Any suggestions why it will work fine through terminal but not shell_exec php?

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  • doujia2090 2012-09-12 16:35
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    I think problem is in LD_LIBRARY_PATH and/or with library paths in general.

    Go to shell and type

    echo $LD_LIBRARY_PATH
    

    and

    ldd /usr/bin/wav2png
    

    Do exact same from php script (be sure to grab output from these commands) and compare, I'm pretty sure you find the answer.

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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