tailieunhanh - PHP & MySQL Everyday Apps for Dummies phần 7

o) $ page ["body_text"] = "Chào mừng bạn đến với mạng nội bộ của chúng tôi". "Trong đó mỗi bộ phận cổ phiếu nội dung". "Toàn bộ công ty. Bạn có thể cập nhật "của bạn. "Sở hữu bộ phận nội dung quá đơn giản của chúng tôi". " các phòng ban". Trang chủ | Chapter 7 Building a Content Management System 251 php echo elements_2 top -- Beginning of Form 1 right side -- form action php echo _SERVER PHP_SELF method pOsT p table border 0 width 100 php if isset GLOBALS message_2 74 echo tr td colspan 2 style font-weight bold font-style italic font-size 90 color red GLOBALS mesSage_2 p td tr foreach fields_2 as field value 82 type types_2 field if type select 85 echo tr td style text-align right font-weight bold fields_2 field td td select name field foreach options field as opt_id opt_name echo option value opt_id if @ _GET field opt_id echo selected echo opt_name n echo select else echo tr td style text-align right 101 font-weight bold value td td input type type name field value .@ field. size length_2 field maxsize length_2 field td tr 109 tr td colspan 2 style text-align center p style margin-top .05in input type submit name Button value php echo elements_2 submit td tr table form td Continued 252 Part IV Building Other Useful Applications Listing 7-3 Continued tr table hr size 10 noshade div style text-align center font-size 75 php echo page bottom body html Following is a description of the numbered lines of code that appear in in Listing 7-3 27 Checks for the existence of an error message that is stored in the _GLOBALS array. If it is set the error message is displayed. 36 For each element in the fields_1 array which is used in the login form a form input element is constructed. 48 At line 48 the submit button is displayed. This button if clicked will make the form submit to and the user s user name and password will be evaluated. 63 The form created after line 63 is the registration form. 74 The isset function call checks for the existence of an error message that is stored in the _GLOBALS array. If set the error message is displayed. 82 The foreach statement starts a loop through the elements that should be displayed on the registration form as defined by the fields_2 array. Line 84 looks