(PHP 5 >= 5.1.0, PHP 7, PHP 8)
SplFileObject::rewind — Rewind the file to the first line
Rewinds the file back to the first line.
此函数没有参数。
没有返回值。
Throws a RuntimeException if cannot be rewound.
示例 #1 SplFileObject::rewind() example
<?php
$file = new SplFileObject("misc.txt");
// Loop over whole file
foreach ($file as $line) { }
// Rewind to first line
$file->rewind();
// Output first line
echo $file->current();
?>