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我試圖更新數據庫中的記錄。該代碼旨在允許用戶更新網站上的條目,並可選擇編輯圖像。當我最初測試這個代碼時,它沒有任何問題。當他們選擇一張圖片時,它會更新圖片,當他們沒有選擇圖片時,它不會在更新中包含圖片。當我將這段代碼移動到它所需要的頁面上時,它就不再起作用了。它總是讀取它,就好像用戶沒有選擇要上傳的圖像一樣。測試代碼和此代碼之間唯一改變的是數據庫中的名稱,以及爲變量$ title和$ description添加了mysql_real_escape_string()。PHP文件上傳無法正常工作
這裏是不是爲我工作的PHP代碼:
<?php
require_once ("connect.php");
if (isset($_POST['description'])) {
$id = $_GET['id'];
$title = $_POST['title'];
$description = $_POST['description'];
$title = mysql_real_escape_string($title);
$description = mysql_real_escape_string($description);
$target = "../images/contests/";
$target = $target.basename($_FILES['image']['name']);
$ok=1;
if($_FILES['image']['name'] == "") {
$query = "UPDATE tbl_contests SET contests_title='$title', contests_description='$description' WHERE contests_id='$id'";
$result = mysql_query ($query);
if ($result) {
header ("Location: contests.php?=noimage");
exit();
} else {
header ("Location: contests.php?=error");
exit();
}
} else {
if ($ok==0){
header("Location: contests.php?=error");
} else {
if(move_uploaded_file($_FILES['image']['tmp_name'], $target)){
echo "<p>Your upload was sucessful.</p>";
$query = "UPDATE tbl_contests SET contests_title='$title', contests_description='$description', contests_image='$target' WHERE contests_id='$id'";
$result = mysql_query ($query);
if ($result) {
header ("Location: contests.php?=image");
exit();
} else {
header ("Location: contests.php?=error");
exit();
}
}
}
}
}
?>
這裏是形式屬於上面的代碼:
<?php
$postnum = $_GET['id'];
$query = "SELECT * FROM tbl_contests WHERE contests_id=".$postnum;
$result= mysql_query($query);
$row = mysql_fetch_array($result);
$path = "../images/contests/";
?>
<form action="update-past.php?id=<?php print $row[contests_id]; ?>" method="post" id="updatepast">
<br /><label>Title:</label> <p><input type="text" name="title" id="title" class="input" value="<?php print $row[contests_title]; ?>" /></p>
<?php if ($row['contests_image'] == !null) { ?>
<p><img src="<?php print $path.$row['contests_image']; ?>" width="425" height="500" /></p>
<br /><label>Edit Image: (Optional)</label> <p><input name="image" type="file" id="image" class="file" size="50" /></p>
<?php } else { ?>
<br /><br /><br /><br /><label>Add Image: (Optional)</label> <p><input name="image" type="file" id="image" class="file" size="50" /></p>
<?php } ?>
<br /><br /><br /><br /><br /><label>Description:</label><p><textarea name="description" cols="85" id="description" class="contentinput" rows="10"><?php print $row[contests_description]; ?></textarea></p>
<p><input type="submit" name="submit" id="button" value="Edit" /></p>
</form>
不能相信我沒有ca謝謝,謝謝! – akari