为需要文件路径的 PHP 函数提供文件句柄

Question

使用PHPExcel，我想从互联网上读取一个文件。 PHPExcel 库似乎只适合打开本地文件，而不适合 URLs。这是我尝试过的：

<?php
require __DIR__ . '/vendor/autoload.php';
$string = file_get_contents('http://opendatakit.org/wp-content/uploads/static/sample.xls');

$stream = fopen('php://memory','r+');
fwrite($stream, $string);
rewind($stream);

$objPHPExcel = PHPExcel_IOFactory::load('php://memory');

这是我收到的错误：

Fatal error: Uncaught exception 'PHPExcel_Reader_Exception' with message 'Could not open php://memory for reading! File does not exist.'

我也试过直接传递 URL (PHPExcel_IOFactory::load('http://opendatakit.org/wp-content/uploads/static/sample.xls'))。类似错误。

Fatal error: Uncaught exception 'PHPExcel_Reader_Exception' with message 'Could not open http://opendatakit.org/wp-content/uploads/static/sample.xls for reading! File does not exist.'

编辑：还尝试了一个临时文件

$string = file_get_contents('http://opendatakit.org/wp-content/uploads/static/sample.xls');

$temp = tmpfile();
fwrite($temp, $string);
fseek($temp, 0);

$objPHPExcel = PHPExcel_IOFactory::load($temp);

这次有不同的错误：

Warning: pathinfo() expects parameter 1 to be string, resource given in /project/vendor/phpoffice/phpexcel/Classes/PHPExcel/IOFactory.php on line 224

Warning: file_exists() expects parameter 1 to be a valid path, resource given in /project/vendor/phpoffice/phpexcel/Classes/PHPExcel/Reader/Excel2007.php on line 81

Fatal error: Uncaught exception 'PHPExcel_Reader_Exception' with message 'Could not open Resource id #10 for reading! File does not exist.'

Answer 1

你的思路很好。但是 PHPExcel 需要一个文件路径才能正常工作。您可以尝试使用此示例：

$string = file_get_contents('http://opendatakit.org/wp-content/uploads/static/sample.xls');

$tmp = tempnam(sys_get_temp_dir(), "FOO");
file_put_contents($tmp, $string);

$objPHPExcel = PHPExcel_IOFactory::load($tmp);

//Perform all your operations
// ...

unlink($tmp);

参见 PHP tempnam() 手册

为需要文件路径的 PHP 函数提供文件句柄

Provide a file handle to a PHP function expecting a file path

php

php-stream-wrappers