SplFileObject::valid()
(PHP 5 >= 5.1.0, PHP 7)
Not at EOF
说明
public SplFileObject::valid(void): bool
Check whether EOF has been reached.
参数
此函数没有参数。
返回值
Returns TRUE
if not reached EOF,FALSE
otherwise.
范例
SplFileObject::valid() example
<?php // Loop over a file, line by line $file = new SplFileObject("file.txt"); while ($file->valid()) { echo $file->fgets(); } ?>
参见
- SplFileObject::current() Retrieve current line of file
- SplFileObject::key() Get line number
- SplFileObject::seek() Seek to specified line
- SplFileObject::next() Read next line
- SplFileObject::rewind() Rewind the file to the first line