scope - PHP IF ELSE issue, can not get correct answers -

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I wrote a PHP function to get the weekend, this " $ data ['project'] "

It's not empty, but it's $ end = date ("ymd", strtotime ('next Sunday')); function weekendignSet (if {empty ($ data ['project'])) {$ end = $ data ['project'] [0] - & gt; Week_and_day; } And (if (($ _GET ['week_ending'])) {$ end = $ _GET ['week_ending'];} and {$ end = date ("Wi-M-D", strotome ('next What is the error? Thank you

You have to go through the $ data to work, it will check if () otherwise try if you are always in the second position 

  function weekendignSet ($ data) {

when calling: - 

  weekendignSet ($ data);

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