那这句哪错了呢? <?php $filename = '66.txt' if (file_exists($filename)) { echo "The file $filename exists"; } else { echo "The file $filename does not exist"; } ?>
<?php $filename = '66.txt'; if (file_exists($filename)) { echo "The file $filename exists"; } else { echo "The file $filename does not exist"; } ?>
<?php
$filename = '66.txt'
if (file_exists($filename))
{
echo "The file $filename exists";
} else
{
echo "The file $filename does not exist";
} ?>
$filename = '66.txt';
if (file_exists($filename))
{
echo "The file $filename exists";
} else
{
echo "The file $filename does not exist";
} ?>
百度词典里面的,运行在我这里提示出错。
一下这句。
$filename = '66.txt'
{
程序1
2
……}else{}
你的程序多了个分号!!!!!
if后面没有分号!
如果有分号就接着执行if下面的一句语句,不会有ifelse的情况出现
if(file_exists("66.txt")); 红色部分的分号去掉就ok
{
echo " already exists";
}
else
{
echo "eeeeeeeeeee";
}
?>