php increment number in loop code example

Example 1: php increment variable

// To increment a variable by 1
$var++;

Example 2: php increment variable

$var = 0;
// use value (0) THEN increment by one
$var++;
// increment by one THEN use value (1)
++$var;

// aside: increment by custom amount (1 emulates the above)
$var += 1;
$var += $step;