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__ PHP __ MySQL __ Zope
__ Perl __ Javascript __ JSP
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¡¡¡¡ÄãÓ¦ÓÐÒ»¸öÓû§±í°üº¬Óû§µÄ×¢²áÐÅÏ¢£¬ÈçÓû§Ãû¡¢ÃÜÂëºÍÆäËüһЩÄãÐèÒªµÄʲôÄÚÈÝ¡£¼ÙÈçÄãÖ±½ÓʹÓñ¾ÎĺóÃæ¸ø³öµÄÔ´Â룬ÄãÒª½¨Ò»¸ö¼òµ¥µÄ±íÈçÏ£º
id username
1 User1
2 User2
3 User3
ÎÒÃÇÏȽ¨Ò»¸ö±í "const_skills" ÓÃÈçÏ嵀 SQL Óï¾ä£º
SQL> CREATE TABLE const_skills (
id int not null primary key,
value varchar(20) );
ÏÖÔÚÎÒÃǼÓÈë¼¼ÄÜ£º
SQL> INSERT INTO const_skills(id, value) VALUES (1, "PHP");
SQL> INSERT INTO const_skills(id, value) VALUES (2, "MySQL");
SQL> INSERT INTO const_skills(id, value) VALUES (3, "Zope");
SQL> INSERT INTO const_skills(id, value) VALUES (4, "Perl");
SQL> INSERT INTO const_skills(id, value) VALUES (5, "Javascript");
SQL> INSERT INTO const_skills(id, value) VALUES (6, "JSP");
ÄãµÄ const_skills ÏÖÔÚÓ¦ÊÇÕâÑùµÄ£º
id value
1 PHP
2 MySQL
3 Zope
4 Perl
5 Javascript
6 JSP
Õâ¸ö±íÖ»ÊÇÈÃÓû§¿ÉÒÔÑ¡ÔñÏàÓ¦µÄ¼¼ÄÜ£¬ÏÖÔÚ£¬ÔÙ½¨Ò»¸ö±í lookup_skills ÓÃÈçϵÄSQL£º
SQL> CREATE TABLE lookup_skills (
id int not null auto_increment primary key,
uid int,
skill_id int );
¡¡¡¡Õâ¸ö±ílookup_skillsµÄÄ¿µÄÊÇÌṩ´ÓÓû§±íµ½¿ª·¢¼¼ÄܱíÖ®¼äµÄÒ»¸öÓ³Éä¹ØÏµ¡£»»¾ä»°Ëµ£¬ËüÈÃÎÒÃDZ£´æ¿ª·¢ÕߺÍËûÃÇÓеļ¼ÄÜ£¬È磬µ±ÇóÖ°ÕßÍê³ÉÑ¡Ôñµã»÷Ìύʱ£¬ÎÒÃǽ«ÌîдÕâ¸ö±íÓÃcheckboxÖб»Ñ¡¶¨µÄÄÇЩֵ¡£¶ÔÓÚÿһ¸öÑ¡Éϵļ¼ÄÜ£¬ÎÒÃÇÔÚÕâ¸ö±íÖмÓÒ»Ìõ¼Ç¼£¬¼ÇÏÂÓû§id¼°ËùÑ¡ÏîµÄid¡££¨Ïë±Ø´ó¼Ò¶¼Çå³þÁ˰ɡ£ÎÒÒëµ½Õ⣬ºÙºÙ…£©
ÔÚÎÒÃÇ¿´Õâ¸ö²åÈë¼Ç¼µÄ´úÂë֮ǰ£¬ÎÒÃÇÏÈÉè¼ÆÒ»ÏÂÕâ¸öÒ³Ãæ£¬Ó¦ÓеÄÄÚÈÝÓÐÒ»¸ö±íµ¥£¬ÎÒÃÇ¿ÉÒÔ²éѯµÄÊý¾Ý¿â²¢ÇÒÈ¡checkbox±êÇ©´Óconst_skills±íÖУ¬½¨Õâ¸öcheckbox±íµ¥Ïî¡£
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< ?php
/* insert code to connect to your database here */
/* get the checkbox labels */
$skills = get_checkbox_labels("const_skills");
/* create the html code for a formatted set of
checkboxes */
$html_skills = make_checkbox_html($skills, 3, 400, "skills[]");
? >
< html >
< body >
< br >
< form name="skills" method="POST" action="insertskills.php" >
Check off your web development skills:
< ? echo "$html_skills"; ? >
< br >
< input type="submit" value="Submit" >
< /form >
< /body >
< /html >
< ?php
function get_checkbox_labels($table_name) {
/* make an array */
$arr = array();
/* construct the query */
$query = "SELECT * FROM $table_name";
/* execute the query */
$qid = mysql_query($query);
/* each row in the result set will be packaged as
an object and put in an array */
while($row= mysql_fetch_object($qid)) {
array_push($arr, $row);
}
return $arr;
}
/* Prints a nicely formatted table of checkbox choices.
$arr is an array of objects that contain the choices
$num is the number of elements wide we display in the table
$width is the value of the width parameter to the table tag
$name is the name of the checkbox array
$checked is an array of element names that should be checked
*/
function make_checkbox_html($arr, $num, $width, $name, $checked) {
/* create string to hold out html */
$str = "";
/* make it */
$str .= "< table width="$width" border="0" >n";
$str .= "< tr >n";
/* determine if we will have to close add
a closing tr tag at the end of our table */
if (count($arr) % $num != 0) {
$closingTR = true;
}
$i = 1;
if (isset($checked)) {
/* if we passed in an array of the checkboxes we want
to be displayed as checked */
foreach ($arr as $ele) {
$str .= "< td >< input type="checkbox" name="$name" value="$ele- >id"";
foreach ($checked as $entry) {
if ($entry == $ele- >value) {
$str .= "checked";
continue;
}
}
$str .= " >";
$str .= "$ele- >value";
if ($i % $num == 0) {
$str .= "< /tr >n< tr >";
} else {
$str .= "< /td >n";
}
$i++;
}
} else {
/* we just want to print the checkboxes. none will have checks */
foreach ($arr as $ele) {
$str .= "< td >< input type="checkbox" name="$name" value="$ele- >id" >";
$str .= "$ele- >value";
if ($i % $num == 0) {
$str .= "< /tr >n< tr >";
} else {
$str .= "< /td >n";
}
$i++;
}
}
/* tack on a closing tr tag if necessary */
if ($closingTR == true) {
$str .= "< /tr >< /table >n";
} else {
$str .= "< /table >n";
}
return $str;
}
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