SplFileObject::valid
(PHP 5 >= 5.1.0)
SplFileObject::valid — Not at EOF
說明
public bool SplFileObject::valid
( void
)
Check whether EOF has been reached.
參數
此函式沒有參數。
回傳值
Returns TRUE if not reached EOF, FALSE otherwise.
範例
Example #1 SplFileObject::valid() example
<?php
// Loop over a file, line by line
$file = new SplFileObject("file.txt");
while ($file->valid()) {
echo $file->fgets();
}
?>
參見
- 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
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