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(PHP 5 >= 5.1.0)
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.
Example #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 ();
?>