Php decrement variable by 1

Php increment variable by 1

$variable++;

Php decrement variable by 1

$variable--;

Php decrement variable

$var = 1;
// use value (1) THEN decrement by one
$var--;
// decrement by one THEN use value (0)
--$var;

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

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