PHP 7.1.21 Released

SplFileObject::fpassthru

(PHP 5 >= 5.1.0, PHP 7)

SplFileObject::fpassthruOutput all remaining data on a file pointer

说明

public int SplFileObject::fpassthru ( void )

Reads to EOF on the given file pointer from the current position and writes the results to the output buffer.

You may need to call SplFileObject::rewind() to reset the file pointer to the beginning of the file if you have already written data to the file.

参数

此函数没有参数。

返回值

Returns the number of characters read from handle and passed through to the output.

范例

Example #1 SplFileObject::fpassthru() example

<?php

// Open the file in binary mode
$file = new SplFileObject("./img/ok.png""rb");

// Send the right headers
header("Content-Type: image/png");
header("Content-Length: " $file->getSize());

// Dump the picture and end script
$file->fpassthru();
exit;

?>

参见

  • fpassthru() - 输出文件指针处的所有剩余数据

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