Page 191 - CITS - Computer Software Application -TT
P. 191

COMPUTER SOFTWARE APPLICATION - CITS




           The while loop does not run a specific number of times, but checks after each iteration if the condition is still true.
           The condition does not have to be a counter, it could be the status of an operation or any condition that evaluates
           to either true or false.

           PHP do while Loop
           The do...while loop - Loops through a block of code once, and then repeats the loop as long as the specified
           condition is true.






















           Example:
           Print $i as long as $i is less than 6:







           Note: In a do...while loop the condition is tested AFTER executing the statements within the loop. This means
           that the do...while loop will execute its statements at least once, even if the condition is false. See example below.
           Let us see what happens if we set the $i variable to 8 instead of 1, before execute the same do...while loop again:
           Example:
           Set $i = 8, then print $i as long as $i is less than 6:
           PHP for Loop

































                                                           178

                             CITS : IT&ITES - Computer  Software Application - Lesson 47 - 62
   186   187   188   189   190   191   192   193   194   195   196