Question

How to flip boolean variable from true to false in PHP

Answer 1

$b = true;
echo $b . '<br />';

$b = !$b;
echo $b . '<br />';

$b = !$b;
echo $b . '<br />';
    
 
/*
run:
  
1

1
  
*/

 

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Answer 2

$b = true;
echo $b ? 'true' : 'false';
echo "<br />";

$b = !$b;
echo $b ? 'true' : 'false';
echo "<br />";

$b = !$b;
echo $b ? 'true' : 'false';
    
 
/*
run:
  
true
false
true 
  
*/

 

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