... The!HTML!submit!input!type!is!given!a!name,!submit_fare,!that!will!be!used!in!the!following !PHP! script. 4 The!opening !PHP! tag!tells !PHP! to!start!processing. 5 Now!we!are!looking!at!the !PHP! instructions.!If!the!user!pressed!the!submit!button,!this!file!will!execute. !PHP! will!store!the!names!of!the!input!devices!in!variables,!$age !and! $submit_fare.!This!conditional!expression!tests!to!see!if!those!variables!were!set.!If!they!weren’t!set,!then!the!form!was!either!not!submitted!or!the!user!left!it!empty,!or!both. ... This!curly!brace!marks!the!end!of!the!while!loop’s!block!of!statements.!Program!control!will!follow!the!arrow!in!the!example,!as!long!as!the!while!expression!tests!true. 7 The !PHP! program!ends!here. Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.Chapter 7. Conditionals and Loops 7.1. Control Structures, Blocks, and Compound ... nested loops is to display data in rows and columns where one loop handles the rows and the other handles the columns. The outside loop is initialized and tested; the inside loop then iterates...