SplFileObject::valid

(PHP 5 >= 5.1.0, PHP 7)

SplFileObject::valid — 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

Example #1 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

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