Php 如何循环遍历数组中的所有值
我不太擅长循环,但我想循环数组中的每一个会话文件值。在这种情况下,foreach循环是如何编写的,它是在php脚本中还是在javascript代码中 下面是上载文件的完整php脚本:Php 如何循环遍历数组中的所有值,php,javascript,loops,Php,Javascript,Loops,我不太擅长循环,但我想循环数组中的每一个会话文件值。在这种情况下,foreach循环是如何编写的,它是在php脚本中还是在javascript代码中 下面是上载文件的完整php脚本: <?php session_start(); $result = 0; $errors = array (); $dirImage = "ImageFiles/"; if (isset ( $_FILES ['fileImage'] ) && $_FILES ["fileImage"]
<?php
session_start();
$result = 0;
$errors = array ();
$dirImage = "ImageFiles/";
if (isset ( $_FILES ['fileImage'] ) && $_FILES ["fileImage"] ["error"] == UPLOAD_ERR_OK) {
$fileName = $_FILES ['fileImage'] ['name'];
$fileExt = pathinfo ( $fileName, PATHINFO_EXTENSION );
$fileExt = strtolower ( $fileExt );
$fileDst = $dirImage . DIRECTORY_SEPARATOR . $fileName;
$filePrifix = basename ( $fileName, "." . $fileExt );
$i = 0;
while ( file_exists ( $fileDst ) ) {
$i ++;
$fileDst = $dirImage . DIRECTORY_SEPARATOR . $filePrifix . "_" . $i . "." . $fileExt;
}
// Move the file
if (count ( $errors ) == 0) {
if (move_uploaded_file ( $fileTemp, $fileDst )) {
$result = 1;
}
}
}
$_SESSION ['fileImage'][] = $_FILES ['fileImage']['name'];
?>
<script language="javascript" type="text/javascript">window.top.stopImageUpload(<?php echo $result;?>);</script>
window.top.stopImageUpload();
下面是包含json代码的javascript函数:
function stopImageUpload(success){
var imageNameArray = <?php echo json_encode(isset($_SESSION ['fileImage']) ? $_SESSION ['fileImage'] : null); ?>;
var result = '';
if (success == 1){
result = '<span class="msg">The file was uploaded successfully!</span><br/><br/>';
for (imagename in imageNameArray)
{
$('.listImage').append(imagename + '<br/>');
}
}
else {
result = '<span class="emsg">There was an error during file upload!</span><br/><br/>';
}
$(sourceImageForm).find('.imagef1_upload_process').css('visibility','hidden');
$(sourceImageForm).find('.imagef1_cancel').css('visibility','hidden');
$(".sbtnimage").removeAttr("disabled");
$(".sbtnvideo").removeAttr("disabled");
$(".sbtnaudio").removeAttr("disabled");
return true;
}
函数stopImageUpload(成功){
var imageNameArray=;
var结果=“”;
如果(成功==1){
结果='文件已成功上载!
';
for(imageNameArray中的imagename)
{
$('.listImage').append(imagename+'
');
}
}
否则{
结果='上传文件时出错!
';
}
$(sourceImageForm).find('.imagef1_upload_process').css('visibility','hidden');
$(sourceImageForm).find('.imagef1_cancel').css('visibility','hidden');
$(“.sbtnimage”).removeAttr(“禁用”);
$(“.sbtnvideo”).removeAttr(“禁用”);
$(“.sbtnaudio”).removeAttr(“禁用”);
返回true;
}
把它放在PHP代码末尾附近的某个地方
var imageNameArray = <?php echo json_encode(isset($_SESSION ['fileImage']) ? $_SESSION ['fileImage'] : null); ?>;
我不太确定我是否理解。。。您希望循环的具体内容是什么?在我的javascript代码中,假设使用append方法输出上载文件的名称,以将$\u SESSION变量附加到'imagename'变量中。。但是假设我上传文件'dog.png',cat.png'和'pig.png',它只为屏幕上的所有文件添加文件名'dog.png',而不是'dog.png',cat.png'和'pig.png'。会话['fileImage']将只包含一个值。每次运行上载代码时,您都应该将
$\u SESSION['fileImage']
的值添加到另一个数组中,并将其传递给JS函数。您能否给出一个示例作为答案?我已经对此进行了测试,但在上载文件后,它会为文件名添加“0”和“1”,为什么会发生这种情况?我在问题中更新了上面的php脚本和javascript函数代码
var imageNameArray = <?php echo json_encode(isset($_SESSION ['fileImage']) ? $_SESSION ['fileImage'] : null); ?>;
for (imagename in imageNameArray)
{
if (success == 1)
{
result = '<span class="msg">The file was uploaded successfully!</span><br/><br/>';
$('.listImage').append(imagename + '<br/>');
}
else {
result = '<span class="emsg">There was an error during file upload!</span><br/><br/>';
}
}