php - Shell Script Segmentation Fault -

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Hello, I have a script which should run on the basis of php code return: 

  X = 1 while [["" $ x "! = 5]] Does the "Welcome $ x" php test.php x = $ resonate? Done

and php code 

  "testdfdf exam" echo .PHP_EOL; Exit (4);

So whenever I have the desire to drop looping from power 5.

But sometimes I get: 

  ./ myshell: line 7: 20529 Segmentation fault PHP test.php

What should be loop without problem?

Perhaps due to this error which affects both Ubuntu and Debian ...


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