logic - How to add key to label when label has value exactly same to key ? ....PHP -

user gives input label , key other parameters(key , label example) want add key label once means @ first execution (first button press - after on every button click should not add; php file loads on every button)after should avoided add (prepend) (key_valuelabel_value) existing code adds key label fails when if user gives label has value similar key.

for example:- key='123' , label='123 test' condition fails.

so suggest me on how can handle case ?

this php, everytime reloads counter failed.

i don't asking why need that. hope code can helps:

function iskeyinlabel($key, $label) {     $keys = explode(' ', $label);      // remove last element (it's label)     array_pop($keys);      return in_array($key, $keys);  } 

usage example:

 // condition returns true  if (iskeyinlabel('456', '123 456 789 test')) {     // exists  } 

notice: of course can't use keys or labels spaces

upd: you'll need variable, example:

// of course need place can save array // possible place can use session or cookies, or // whatever want, here session usage example session_start();  // hash have keys executed $execkeys = isset($_session['execkeys'])?$_session['execkeys']:array();  // assuming $execkeys[$label] array if (isset($execkeys[$label]) && in_array($key, $execkeys[$label])) {   // code executed } else {     $execkeys[$label] = isset($execkeys[$label])?$execkeys[$label]:array();     $execkeys[$label][] = $key;     // , if still need     $label = $key.' '.$label; }  $_session['execkeys'] = $execkeys;