启动盒喷口
我在这里下载了Box / Spout https://github.com/box/spout，但是我有一个问题来启动Spout。 我将该文件复制到WAMP的文件夹中。
<?php use Box\Spout\Writer\WriterFactory; use Box\Spout\Common\Type; $writer = WriterFactory::create(Type::XLSX); $writer->openToBrowser($fileName); // stream data directly to the browser $writer->addRows($multipleRows); // add multiple rows at a time $writer->close(); ?> 我创build了文件index.php和Spout文件在WWW / Spout / Box / Common，Reader和Writer文件夹中。 我有这个错误：
（！）致命错误：在第5行C：\ wamp \ www \ Spout \ Index.php中找不到类“Box \ Spout \ Writer \ WriterFactory”
哪里有问题 ？
下载文件是不够的。 如果你不使用Composer（推荐使用Spout），你需要添加一个额外的自动加载器（这将自动加载你的类）。 由于Spout符合PSR4，自动加载它的类并不是很难。
这里有一些你可以用来自动加载Spout类的工作代码：
Psr4Autoloader.php
<?php namespace Autoloader; class Psr4Autoloader { /** * An associative array where the key is a namespace prefix and the value * is an array of base directories for classes in that namespace. * * @var array */ protected $prefixes = array(); /** * Register loader with SPL autoloader stack. * * @return void */ public function register() { spl_autoload_register(array($this, 'loadClass')); } /** * Adds a base directory for a namespace prefix. * * @param string $prefix The namespace prefix. * @param string $base_dir A base directory for class files in the * namespace. * @param bool $prepend If true, prepend the base directory to the stack * instead of appending it; this causes it to be searched first rather * than last. * @return void */ public function addNamespace($prefix, $base_dir, $prepend = false) { // normalize namespace prefix $prefix = trim($prefix, '\\') . '\\'; // normalize the base directory with a trailing separator $base_dir = rtrim($base_dir, DIRECTORY_SEPARATOR) . '/'; // initialize the namespace prefix array if (isset($this->prefixes[$prefix]) === false) { $this->prefixes[$prefix] = array(); } // retain the base directory for the namespace prefix if ($prepend) { array_unshift($this->prefixes[$prefix], $base_dir); } else { array_push($this->prefixes[$prefix], $base_dir); } } /** * Loads the class file for a given class name. * * @param string $class The fully-qualified class name. * @return mixed The mapped file name on success, or boolean false on * failure. */ public function loadClass($class) { // the current namespace prefix $prefix = $class; // work backwards through the namespace names of the fully-qualified // class name to find a mapped file name while (false !== $pos = strrpos($prefix, '\\')) { // retain the trailing namespace separator in the prefix $prefix = substr($class, 0, $pos + 1); // the rest is the relative class name $relative_class = substr($class, $pos + 1); // try to load a mapped file for the prefix and relative class $mapped_file = $this->loadMappedFile($prefix, $relative_class); if ($mapped_file) { return $mapped_file; } // remove the trailing namespace separator for the next iteration // of strrpos() $prefix = rtrim($prefix, '\\'); } // never found a mapped file return false; } /** * Load the mapped file for a namespace prefix and relative class. * * @param string $prefix The namespace prefix. * @param string $relative_class The relative class name. * @return mixed Boolean false if no mapped file can be loaded, or the * name of the mapped file that was loaded. */ protected function loadMappedFile($prefix, $relative_class) { // are there any base directories for this namespace prefix? if (isset($this->prefixes[$prefix]) === false) { return false; } // look through base directories for this namespace prefix foreach ($this->prefixes[$prefix] as $base_dir) { // replace the namespace prefix with the base directory, // replace namespace separators with directory separators // in the relative class name, append with .php $file = $base_dir . str_replace('\\', '/', $relative_class) . '.php'; // if the mapped file exists, require it if ($this->requireFile($file)) { // yes, we're done return $file; } } // never found it return false; } /** * If a file exists, require it from the file system. * * @param string $file The file to require. * @return bool True if the file exists, false if not. */ protected function requireFile($file) { if (file_exists($file)) { require $file; return true; } return false; } }
autoload.php
<?php require_once "Psr4Autoloader.php"; $loader = new \Autoloader\Psr4Autoloader; $loader->register(); $loader->addNamespace('Box\Spout', 'vendor/box/spout/src/Spout');
一旦将这两个文件添加到项目中，请确保require_oncepath在autoload.php中是正确的，并最终在根文件（如index.php ）中或在任何地方添加require_once“path / to / autoload.php”这是更合适的。