scripting - Appending multiple entries to an output file with a crontab using php? -

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I am writing a script in PHP where I log in system uptime, current time and the quantity of users in a log file system These have been done, and are continuously updated through a crontab.

I need help for this, that I would like to submit the updates in the file and will be continuously added. Until now, whenever my script is executed, the latest update overwrites the previous update.

What I have done is that I tried to declare an array of entries and as I repeat through the array again, press the contents of the update in the array (this half-baked There may be a bit of logic in my part).

My code: 

  $ fileName = '../so-and-so directory / output.log'; $ Dt = date ('m / d / y'); $ Time = date ('h: ii'); $ Data = shell_xax ('uptime'); $ Uptime = explosion ('up', $ data); $ Uptime = Explosion (',', $ uptime [1]); $ Uptime = $ uptime [0] ','. $ Uptime [1]; $ User = system ('w', $); $ Array = new splfixedArray (3); $ FileLog = fopen ($ fileName, 'w'); $ FileString = "Date:" $ dt. "\ N". "time:". Time "\ N". "system uptime ". $ Uptime ". \ N". "User" "$ users; foreign currency (dollar array as $ entry) {array_push (file_put_contents ($ fileName, $ fileString));} Fclose ($ fileLog);   
 It seems that the solution is very simple, but I am missing it. Will someone give me a clue?   
 
 
 "W" The filemade file will be sorted, instead of the "a" attachment at the end. See  fopen (3)  or PHP documentation for details.  
 In addition,  File_put_contents ()  delete the file Instead try  fwrite () .

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