PHP MySQL - Stilson.net

www.it-ebooks.infoCHAPTER 3 • PHP BASICSWith these rules in mind, consider the following examples, all of which display a partialkilometer/mile equivalency chart:// Example Onefor ($kilometers = 1; $kilometers 5) break;printf("%d kilometers = %f miles ", $kilometers, $kilometers*0.62140);}// Example Three$kilometers = 1;for (;;) {// if $kilometers > 5 break out of the for loop.if ($kilometers > 5) break;printf("%d kilometers = %f miles ", $kilometers, $kilometers*0.62140);$kilometers++;}The results for all three examples follow:1 kilometers = 0.6214 miles2 kilometers = 1.2428 miles3 kilometers = 1.8642 miles4 kilometers = 2.4856 miles5 kilometers = 3.107 milesThe foreach StatementThe foreach looping construct syntax is adept at looping through arrays, pulling each key/value pairfrom the array until all items have been retrieved or some other internal conditional has been met. Twosyntax variations are available, each of which is introduced with an example.The first syntax variant strips each value from the array, moving the pointer closer to the end witheach iteration. The following is its syntax:foreach (array_expr as $value) {statement}Suppose you want to output an array of links, like so: