如何将输入值和选择选项一起发送到php
我有以下代码。我如何将此表单发送到php，以便在php中可以像如何将输入值和选择选项一起发送到php,php,html,mysql,Php,Html,Mysql,我有以下代码。我如何将此表单发送到php，以便在php中可以像studentName course2 year3一样访问它。基本上，我有一个表，看起来像studentName | course | year。我正在寻找正确的方法来组织数据，以便将其插入到我的表中。我尝试过将表单以数组的形式发送但是我必须写3个查询来插入3个输入。有没有办法循环数据并插入 <form id="myform" method="POST"> <label>college:<
studentName course2 year3studentName | course | year <form id="myform" method="POST">
<label>college:</label><input type="text" id="clg" name="clg"/><br/>
<label>Student:-</label><input type="text" name="name[]" id="name" />
<select name="taskOpen[]">
<option value="1">course1</option>
<option value="2">course2</option>
<option value="3">course3</option>
<option value="4">course4</option>
</select>
<select name="year[]">
<option value="1">year1</option>
<option value="2">year2</option>
<option value="3">year3</option>
<option value="4">year4</option>
</select>
<label>Student:-</label><input type="text" name="name[]" id="name" />
<select name="taskOpen[]">
<option value="1">course1</option>
<option value="2">course2</option>
<option value="3">course3</option>
<option value="4">course4</option>
</select>
<select name="year[]">
<option value="1">year1</option>
<option value="2">year2</option>
<option value="3">year3</option>
<option value="4">year4</option>
</select>
<input type="button" value="search" id="btn"/>
</form>
这是我认为你想要的 HTML
<!-- THE NAMES OF INPUT ELEMENTS WRAPPED IN A college_data-->
<form id="myform" method="POST">
<label>college:</label><input type="text" id="clg" name="college_data[clg]"/><br/>
<label>Student:-</label><input type="text" name="college_data[name]" id="name"/>
<select name="college_data[taskOpen1]">
<option value="1">course1</option>
<option value="2">course2</option>
<option value="3">course3</option>
<option value="4">course4</option>
</select>
<select name="college_data[year1]">
<option value="1">year1</option>
<option value="2">year2</option>
<option value="3">year3</option>
<option value="4">year4</option>
</select>
<label>Student:-</label><input type="text" name="name[]" id="name"/>
<select name="college_data[taskOpen2]">
<option value="1">course1</option>
<option value="2">course2</option>
<option value="3">course3</option>
<option value="4">course4</option>
</select>
<select name="college_data[year2]">
<option value="1">year1</option>
<option value="2">year2</option>
<option value="3">year3</option>
<option value="4">year4</option>
</select>
<input type="submit" value="search" id="btn"/>
</form>
学院：
学生：-
课程1
课程2
课程3
课程4
第一年
第二年
第三年
第四年
学生：-
课程1
课程2
课程3
课程4
第一年
第二年
第三年
第四年
<?php
$college = isset($_POST['college_data']['clg']) ? htmlspecialchars(trim($_POST['college_data']['clg'])) :null;
$studentName = isset($_POST['college_data']['name']) ? htmlspecialchars(trim($_POST['college_data']['name'])) :null;
$studentName2 = isset($_POST['college_data']['name2']) ? htmlspecialchars(trim($_POST['college_data']['name2'])) :null;
$taskOpen1 = isset($_POST['college_data']['taskOpen1']) ? htmlspecialchars(trim($_POST['college_data']['taskOpen1'])) :null;
$taskOpen2 = isset($_POST['college_data']['taskOpen2']) ? htmlspecialchars(trim($_POST['college_data']['taskOpen2'])) :null;
$year1 = isset($_POST['college_data']['year1']) ? htmlspecialchars(trim($_POST['college_data']['year1'])) :null;
$year2 = isset($_POST['college_data']['year2']) ? htmlspecialchars(trim($_POST['college_data']['year2'])) :null;
// TEST::: DELETE EVERYTHING BELOW THIS LINE ONCE YOU ARE DONE CONFIRMING THAT IT IS OK
// CLICK THE SUBMIT BUTTON TO SEE THE VALUES REFLECTED HERE AS SOON AS THE FORM GETS SUBMITTED...
var_dump($college);
var_dump($studentName);
var_dump($studentName2);
var_dump($taskOpen1);
var_dump($taskOpen2);
var_dump($year1);
var_dump($year2);
?>
<?php
// FIRST CREATE AN ARRAY TO HOLD MESSAGES TO BE SHOWN TO THE USER
// SHOULD ANYTHING GO WRONG... & ALSO AN EMPTY ERROR MESSAGE STRING...
$arrErrorBag = array();
$strErrorMsg = "";
if(isset($_POST['submit'])) {
// LET'S ASSUME FOR THE MOMENT YOU HAVE SPECIAL CONSTRAINTS
// TO BE APPLIED TO EACH FIELD DURING YOUR VALIDATION PROCESS.
// WE WILL USE SIMPLE REGULAR EXPRESSIONS HERE FOR DEMONSTRATION
// BUILD VALIDATION REG-EXES FOR THE FIELD:: WE WANT ONLY A MINIMUM OF 10 CHARACTERS FOR STUDENT & COLLEGE
// AGAIN; YOU CAN GO WILD BUT WE ARE KEEPING IT SIMPLE
// PLUS, DOING IT LIKE THIS IS JUST SO THAT YOU GET THE DRIFT... ;-)
$rxColStudent = "#(.){10,}#si";
// FOR THE SELECTS, WE KNOW THAT THE VALUES ARE NUMBERS
// WHICH ARE BETWEEN 1 & 4; BUT WE TAKE IT TO "BETWEEN 1 & 9"
// AND WE INTEND USING ONE REGEX FOR ALL OF THEM SINCE THEY ARE SIMILAR.
$rxCourseYear = "#\d#";
// NOW WE HAVE THE REGEXES: THEN WHAT?
// VALIDATION BEGINS... ;-)
// TO MAKE IT EASIER ON OURSELVES, WE BUNDLE ALL THE STUDENT, STUDENT1 & COLLEGE FIELDS
// INTO AN ARRAY & LOOP THROUGH THE ARRAY, BUILDING THE ERRORS ON EACH ITERATION THROUGH THE LOOP.
// VALIDATE COLLEGE, STUDENT & STUDENT2...
$arrStringValFields = array(
"student" => array("Student Nr. 1", $studentName),
"student2" => array("Student Nr. 2 ", $studentName2),
"college" => array("College", $college),
);
// RUN THE LOOP & KEEP BUILDING THE ERRORS AS YOU VALIDATE THROUGH EACH ITERATION.
foreach ($arrStringValFields as $fieldName => $arrErrStringVal) {
if (!preg_match($rxColStudent, $arrErrStringVal[1])) {
$arrErrorBag[$fieldName] = $arrErrStringVal[0] . " is expected to have a minimum of 10 Characters. Please, check that you have not missed something.";
}
}
// TO MAKE IT AGAIN EASIER ON OURSELVES, WE BUNDLE ALL OTHER FIELDS THAT HAVE NUMERIC VALUES
// INTO AN ARRAY & LOOP THROUGH THE ARRAY, BUILDING THE ERRORS ON EACH ITERATION THROUGH THE LOOP.
$arrNumericFields = array(
"taskOpen1" => array("Open Task Nr. 1", $taskOpen1),
"taskOpen2" => array("Open Task Nr. 2 ", $taskOpen2),
"year1" => array("College Year Section 1", $year1),
"year2" => array("College Year Section 2", $year2),
);
// RUN THE LOOP & KEEP BUILDING THE ERRORS AS YOU VALIDATE THROUGH EACH ITERATION.
foreach ($arrNumericFields as $fieldName => $arrErrStringVal) {
if (!preg_match($rxCourseYear, $arrErrStringVal[1])) {
$arrErrorBag[$fieldName] = $arrErrStringVal[0] . " is expected to be a Single Digit & it should. Did you try to *NUKE OUR ASSES OFF*. Please, don't. We are your Brothers ;-)";
}
}
// MAMA MIA!!! SO MUCH FOR A SIMPLE 6-FIELD VALIDATION...
// HAPPILY ENOUGH; WE ARE THERE... ONLY; NOT JUST YET...
// CHECK THE ERROR BAG TO SEE IF IT CONTAINS ANYTHING.
// IF IT DOES; THEN WE HAVE TO FIND A WAY TO DISPLAY THIS TO THE END-USER.
if (!empty($arrErrorBag)) {
// TURN THE ERROR BAG ARRAY TO A STRING & ASSIGN IT BACK TO THE ERROR MESSAGE STRING FOR DISPLAY...
$strErrorMsg = "<span class='has-error'>" . implode("</span><br /><span class='has-error'>", $arrErrorBag);
}
else {
// WE HAVE REACHED THE CLIMAX OF OUR POLICE-WORK...
// SO WE EITHER STORE THE DATA TO THE DATABASE TABLE OR
// WE BAKE & CAKE IT FOR CHRISTMAS - YOUR CALL ;-)
}
}
?>
从数据库中的表格设计来看，您似乎希望插入一名学生、他们的课程以及他们接受该课程的年份。除非您要验证表单，以便学生数量与课程数量和年数相匹配，以便您可以轻松地根据他们的索引循环和插入，否则我看不出如何轻松完成。
例如：
$_POST = Array(
'name' = Array ( 'Kelly', 'Tom', 'Jack' ),
'course' = Array ( 'Course1', 'Course2', 'Course3' ),
'year' = Array ( '2007', '2008', '2009' ),
);
for ( $i = 0; i < count($_POST['student_name']); i++ ) {
$sql = sprintf("INSERT INTO test ( student_name, course, year ) VALUES ( %s, %s, %d )",
$_POST['student_name'][$i], $_POST['course'][$i], $_POST['year'][$i]
);
$conn->query($sql);
}
$\u POST=数组(
'name'=数组（'Kelly'，'Tom'，'Jack'），
'课程'=数组（'Course1'，'Course2'，'Course3'），
'year'=数组（'2007'、'2008'、'2009'），
);
对于（$i=0；iquery（$sql）；
}
让我们看看PHP端有什么，我们可以帮助您进行调整。首先将
更改为
，这样您就可以提交表单了。然后用print\r（$\u post）
@PedroLobito分析帖子内容。我正在用ajax发送表单。我可以用php@cmorrissey我已经添加了我的php。@ToniReese当您的插入不正确时，请允许我为您正确使用准备好的语句而鼓掌
是！做得非常好，通常您会看到过时的代码，并且容易受到SQL注入的影响。如果用户只填写了一个输入怎么办？我是说如果第二个输入是可选的呢？@Toni Reese没问题。。。。它仍然是可选的。。。只要您没有验证这些可选字段，并且没有将html REQUIRED关键字添加到任何字段中。这就是为什么当用户没有填写$college、$year1、$year2等变量时，这些变量都默认为NULL。您可以将空值更改为您希望的任何默认值，甚至可以将它们设置为空字符串，如：“谢谢，我将尝试：-）如果我想验证是否至少选择了一个输入，那么另一个输入是可选的呢？另外，我正在使用jquery ajax将表单发送到php。我使用了var_dump，但它返回null。这是更简单的部分：您已经有了用于验证的数据。。。我将在稍后更新帖子，以反映稍后的验证过程。。。然而，请记住，这里的验证可能是无关的，因为除了大学和学生之外，所有的都是下拉列表。尽管如此，这可能是必要的，因为有人可以打开Web Inspector并向其中一个选项中注入一些SH*@t。我将投票支持您给出的示例。我将尝试实现您的示例，并与您联系：-）
<!-- WE ADD A SLOT FOR OUR ERROR MESSAGE: JUST BEFORE THE FORM. -->
<div class="error-slot"><?php echo $strErrorMsg; ?></div>
<form id="myform" method="POST">
<label>college:</label><input type="text" id="clg" name="college_data[clg]" value="<?php echo $college; ?>" /><br/>
<label>Student:-</label><input type="text" name="college_data[name]" value="<?php echo $studentName; ?>" id="name"/>
<select name="college_data[taskOpen1]">
<option value="1" <?php if($taskOpen1=="1"){echo "selected";} ?>>course1</option>
<option value="2" <?php if($taskOpen1=="2"){echo "selected";} ?>>course2</option>
<option value="3" <?php if($taskOpen1=="3"){echo "selected";} ?>>course3</option>
<option value="4" <?php if($taskOpen1=="4"){echo "selected";} ?>>course4</option>
</select>
<select name="college_data[year1]">
<option value="1" <?php if($year1=="1"){echo "selected";} ?>>year1</option>
<option value="2" <?php if($year1=="2"){echo "selected";} ?>>year2</option>
<option value="3" <?php if($year1=="3"){echo "selected";} ?>>year3</option>
<option value="4" <?php if($year1=="4"){echo "selected";} ?>>year4</option>
</select>
<label>Student:-</label><input type="text" name="college_data[name2]" value="<?php echo $studentName2; ?>" id="name"/>
<select name="college_data[taskOpen2]">
<option value="1" <?php if($taskOpen2=="1"){echo "selected";} ?>>course1</option>
<option value="2" <?php if($taskOpen2=="2"){echo "selected";} ?>>course2</option>
<option value="3" <?php if($taskOpen2=="3"){echo "selected";} ?>>course3</option>
<option value="4" <?php if($taskOpen2=="4"){echo "selected";} ?>>course4</option>
</select>
<select name="college_data[year2]">
<option value="1" <?php if($year2=="1"){echo "selected";} ?>>year1</option>
<option value="2" <?php if($year2=="2"){echo "selected";} ?>>year2</option>
<option value="3" <?php if($year2=="3"){echo "selected";} ?>>year3</option>
<option value="4" <?php if($year2=="4"){echo "selected";} ?>>year4</option>
</select>
<input type="submit" value="search" name="submit" id="btn"/>
</form>
$_POST = Array(
'name' = Array ( 'Kelly', 'Tom', 'Jack' ),
'course' = Array ( 'Course1', 'Course2', 'Course3' ),
'year' = Array ( '2007', '2008', '2009' ),
);
for ( $i = 0; i < count($_POST['student_name']); i++ ) {
$sql = sprintf("INSERT INTO test ( student_name, course, year ) VALUES ( %s, %s, %d )",
$_POST['student_name'][$i], $_POST['course'][$i], $_POST['year'][$i]
);
$conn->query($sql);
}