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Top Forums Shell Programming and Scripting While loop with limit counter Post 302990691 by unexistance on Monday 30th of January 2017 08:08:26 PM
Old 01-30-2017
Quote:
Originally Posted by Don Cragun
Does the file /tmp/unex exist? If it does not exist, is there some reason to think that it might be created while your script is running? If it does exist, is there some reason to think that it might be removed while your script is running?

What output are you getting?

What output do you want to get?

With no indication of what you are trying to do and no indication of the state of the conditions being tested by your script, it is hard to guess at what you might think right or wrong?
Ah my bad, I am trying to detect the file to see if it existed, but cannot have it run indefinitely, so I've put the counter as a limit

using || or &&, the counter still went beyond 10, in which I expect after trying to detect the file 10 times, the script will quit
 

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IGNORE_USER_ABORT(3)							 1						      IGNORE_USER_ABORT(3)

ignore_user_abort - Set whether a client disconnect should abort script execution

SYNOPSIS
int ignore_user_abort ([string $value]) DESCRIPTION
Sets whether a client disconnect should cause a script to be aborted. When running PHP as a command line script, and the script's tty goes away without the script being terminated then the script will die the next time it tries to write anything, unless $value is set to TRUE PARAMETERS
o $value - If set, this function will set the ignore_user_abort ini setting to the given $value. If not, this function will only return the previous setting without changing it. RETURN VALUES
Returns the previous setting, as an integer. EXAMPLES
Example #1 A ignore_user_abort(3) example <?php // Ignore user aborts and allow the script // to run forever ignore_user_abort(true); set_time_limit(0); echo 'Testing connection handling in PHP'; // Run a pointless loop that sometime // hopefully will make us click away from // page or click the "Stop" button. while(1) { // Did the connection fail? if(connection_status() != CONNECTION_NORMAL) { break; } // Sleep for 10 seconds sleep(10); } // If this is reached, then the 'break' // was triggered from inside the while loop // So here we can log, or perform any other tasks // we need without actually being dependent on the // browser. ?> NOTES
PHP will not detect that the user has aborted the connection until an attempt is made to send information to the client. Simply using an echo statement does not guarantee that information is sent, see flush(3). SEE ALSO
connection_aborted(3), connection_status(3), Connection Handling for a complete description of connection handling in PHP. . PHP Documentation Group IGNORE_USER_ABORT(3)
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