php - Is there a way to ignore isset and display result -

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may easy can't understand this.

i have 2 pages both lead third page. in third page have

if(isset($_get['something']) && isset($_get['somethingelse'])) {      $something = $_get['something'];      $somethingelse = $_get['somethingelse'];      //more stuff here }

from page1.php page3.php 1 url 

<a href="page3.php?something='.$something.'&somethingelse='.$somethingelse.'">click</a>

and page3.php show expected. problem page2.php page3.php. there link like

<a href="page3.php?something='.$something.'">click</a>

so page3.php doesn't load since there check somethingelse.. how can ignore isset without delete because need value of $somethingelse when comes page1.php. can't think solution here.

you can't ignore if statement, whole point of flow control. want something, if it's passed if statement. if want define $somethingelse if it's in $_get variable, , allow script continue executing if $_get['somethingelse'] empty, then:

if(isset($_get['something'])) {      $something = $_get['something'];      $somethingelse = $_get['somethingelse'] ?: false;      //more stuff here }

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