Use a for loop to execute a block of code a specified number of times.


for (init; condition; increment)
  code to be executed;

The for loop is based on a counter.

  • init is the counter’s initial value
  • condition indicates when to stop the loop
  • increment indicates how much to increase or decrease the counter, each time around the loop

Example, loop numbers one through four:

for ($i=1; $i<=4; $i++)
  print 'Number ' . $i . '<br />';

In the above example:

  • $i is a variable (the loop counter)
  • Initial counter value is one
  • Condition: continue  loop if counter is less than or equal to four (note the <= operator)
  • Increment counter plus one after each time through the loop (note the ++ operator)

See Also