PHP中的copy()函数是一个内置函数,用于复制指定的文件。它将源文件复制到目标文件,如果目标文件已经存在,它将被覆盖。copy()函数在成功时返回true,失败时返回false。
语法:
bool copy ( $source, $dest )
参数:
PHP中的copy()函数接受两个参数,即源参数和目标参数。
$source:它指定源文件的路径。
$dest:用于指定目标文件的路径。
返回值:
成功时返回true,失败时返回false。
错误和异常:
PHP中的copy()函数不适用于远程文件。它只对服务器文件系统可访问的文件起作用。
如果目标文件已经存在,它将被覆盖。
copy()函数代码使用示例1:
<?php // 复制gfg.txt到php.txt echo copy("gfg.txt", "php.txt"); ?>
输出:
true
copy()函数代码使用示例2:
<?php $srcfile = '/user01/Desktop/admin/gfg.txt'; $destfile = 'user01/Desktop/admin/php.txt'; if (!copy($srcfile, $destfilefile)) { echo "文件不能被复制 \n"; } else { echo "文件已被复制!"; } ?>
输出:
文件已被复制!
相关推荐:《PHP教程》
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