我这个PHP代码:
<?php
// Check for errors
if($_FILES['file_upload']['error'] > 0){
die('An error ocurred when uploading.');
}
if(!getimagesize($_FILES['file_upload']['tmp_name'])){
die('Please ensure you are uploading an image.');
}
// Check filesize
if($_FILES['file_upload']['size'] > 500000){
die('File uploaded exceeds maximum upload size.');
}
// Check if the file exists
if(file_exists('upload/' . $_FILES['file_upload']['name'])){
die('File with that name already exists.');
}
// Upload file
if(!move_uploaded_file($_FILES['file_upload']['tmp_name'], 'upload/' . $_FILES['file_upload']['name'])){
die('Error uploading file - check destination is writeable.');
}
die('File uploaded successfully.');
?>
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我需要对现有文件采取"窗口"处理方式 - 我的意思是如果文件存在,我希望将其更改为后面带有数字1的文件名.
例如:myfile.jpg已经存在,所以如果你再次上传它将是myfile1.jpg,如果myfile1.jpg存在,它将是myfile11.jpg等等......
我该怎么做?我尝试了一些循环但不幸的是没有成功.
我正在使用MySQLi从数据库中检索信息。我所有的页面都使用UTF-8编码,没有BOM,我有2个页面要处理,但是主要的问题是数据库上的信息以常规方式显示-但是当我检索它时,它是这样的:
?????? ?????? -????
在phpMyAdmin面板上-列为latin1_general_ci(我也尝试将其设置为utf8_general-相同的输出!)。
“ mysql.php”:
<?php
header('Content-type: text/xhtml; charset=windows-1255');
$mysql = new mysqli('localhost', 'elenbyin_vadim', 'pass33323', 'elenbyin_vadim');
?>
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“ index.php”,主要部分:
<?php
include ('mysql.php');
include('functions.php');
if($_GET["lang"] == 'rus')
$lang = 'rus';
else if($_GET["lang"] == 'heb')
$lang = 'heb';
else
$lang = 'heb';
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......
<div class="main_text">
<?
$result = $mysql->query('SELECT * FROM homepage');
while($row = mysqli_fetch_array($result)){
echo "".$row['title']."<br />".$row['text_heb']."";
}
?>
</div>
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有人可以帮助我解决这个问题吗?