Question

How to use increment and decrement operators in PHP

Answer 1

$x = 1;

echo ++$x . "<br />"; // 2  // Increments $x by one, then returns $x     
echo $x++ . "<br />"; // 2  // Returns $x, then increments $x by one     
echo $x . "<br />";   // 3



$x = 5;

echo --$x . "<br />"; // 4 // Decrements $x by one, then returns $x     
echo $x-- . "<br />"; // 4 // Returns $x, then decrements $x by one
echo $x . "<br />";   // 3


/*
run:

2
2
3
4
4
3

*/

 

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