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我在函數內循環時遇到了麻煩。這不起作用,我想因爲我的循環,我需要一些幫助糾正,請。 :)和問題如何循環使用Javascript函數?
的建議,下面是我做了什麼:
<script>
function getImage1(str) {
if (window.XMLHttpRequest) {
// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
} else { // code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function() {
for (i = 0; i < xmlhttp.length; i++) {
if (xmlhttp.readyState==4 && xmlhttp.status==200) {
document.getElementById("result1").innerHTML=xmlhttp.responseText;
}
}
xmlhttp.open("GET","getImage.php?no="+str,true);
xmlhttp.send();
}
}
</script>
這裏是我的PHP:
<select onchange="getImage1(this.value)" name="<?php echo $rowasa['pos_name'] ?>" style="height: 47px;">
<option value='0' >Pls. Select <?php echo $rowasa['pos_name'] ?></option>
<?php
include('connection/connect.php');
$dsds=$rowasa['posid'];
$YearNow=Date('Y');
$results = $db->prepare("SELECT * FROM candidates,student,school_year,partylist where student.idno = candidates.idno AND school_year.syearid = candidates.syearid AND posid =:a AND candidates.partyid = partylist.partyid ");
$results->bindParam(':a', $dsds);
$results->execute();
while($rows = $results->fetch()){
?><!---$rows['candid'] . "," .-->
<option style="padding: 35px 50px 35px 80px; background:url('admin/candidates/images/<?php echo $rows['image']; ?>') no-repeat scroll 5px 7px/70px auto rgba(0, 0, 0, 0);"
value="<?php echo $rows['candid'] . "-" ." ". $rows['lastname'] .",". " ". $rows['firstname'] ?>"> <?php echo $rows['lastname'] ?>,
<?php echo $rows['firstname'] ?>
- <?php
echo $rows['party_name']?></option>
<?php
}
?>
</select>
<div class="12u$"><span id="result1">
你在哪裏'echo'來標記/ – Rayon
我覺得很多問題來縮小一次,但你你循環 –
也沒有看到任何理由環路輸出相同的responseText前應檢查的readyState和狀態。一旦它返回,它不會改變,除非再次請求 –