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How to use increment (++) and decrement (--) operators in PHP

1 Answer

0 votes
$i = 1;
echo "\$i = " . $i . "<br /><br />"; 

$n = ++$i;
echo "\$n = ++\$i = " . $n . "<br />"; 
echo "\$i = " . $i . "<br /><br />"; 

$n = --$i;
echo "\$n = --\$i = " . $n . "<br />";  
echo "\$i = " . $i . "<br /><br />"; 

$n = $i++;
echo "\$n = \$i++ = " . $n . "<br />";   
echo "\$i = " . $i . "<br /><br />"; 

$n = $i--;
echo "\$n = \$i-- = " . $n . "<br />";   
echo "\$i = " . $i . "<br /><br />"; 
 

 
/*
run: 
  
$i = 1

$n = ++$i = 2
$i = 2

$n = --$i = 1
$i = 1

$n = $i++ = 1
$i = 2

$n = $i-- = 2
$i = 
  
*/ 

 




answered Sep 5 by avibootz
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