autoload

问题 I would like to be able to use OOP and create new objects in my controllers in CodeIgniter. So I need to use an autoload-function: function __autoload( $classname ) { require_once("../records/$classname.php"); } But how can I add that to CodeIgniter? 回答1: You can add your auto loader above to app/config/config.php . I've used a similar autoload function before in this location and it's worked quite neatly. function __autoload($class) { if (strpos($class, 'CI_') !== 0) { @include_once(APPPATH

问题 I am trying to find the best way to use composer for a modular structure. Let's say I have this framework tree: /cms /site/addons Let's say that addons are available for developers to add their projects with their composer.json installs. Like /site/addons/MyNewFeature/composer.json So the next question is the /vendor location. Should each addon have a /vendor directory and should I autoload them all within the main framework, which I think the performance of that would be too much and

问题 I would like to use the Amazon AWS SDK for PHP in my Yii project, however I get all kinds of include errors (such as include(CFCredentials.php): failed to open stream: No such file or directory ). I think it may be related to Yii's assumption that class names must match file names... What can we do?? 回答1: I've made that: spl_autoload_unregister(array('YiiBase', 'autoload')); require_once PATH_TO_AWS_SDK . 'sdk.class.php'; // I write down in PATH_TO_AWS_SDK.'config.inc.php' my CFCredentials

问题 I've created a library folder within the app folder to add my own classes. This is the content of the file app/library/helper.php : <?php namespace Library; class MyHelper { public function v($arr) { var_dump($arr); } } I added the namespace to composer.json : and then I ran $ composer dump-autoload but it does not seem to have any effects. The files vendor/composer/autoload_psr4.php vendor/composer/autoload_classmap.php did not change. If I try to create an instance of MyHelper , Laravel

问题 I am trying to put all the peaces together I found about autoloading a class in composer but I can't make it work. Every example I see is missing some part. Basically it comes down to two files with 4 lines: index.php $loader = require 'vendor/autoload.php'; $loader->add('Vendor\\', __DIR__.'/../app/'); new Vendor_Package_Obj(); app/Vendor/Package/Obj.php class Obj {} I also tried psr-4 and all thinkable combinations of folders and names for `Vendor Package Obj? but no luck finding a working

问题 In the example below, at what point does the autoloader load the class file, if at all? For example, if $boolean_test === false does the Subpackage get loaded? use Org\Group\Package\Subpackage; // autoloader triggered here? if ($boolean_test) { Subpackage::method(); // or here? } I prefer the use statement near the top of the code so I can see what packages are used in the page and for slightly better readability. But, if packages are only used based on conditionals, I may be loading unneeded

问题 I am new with this namespace thing. I have 2 classes(separate files) in my base directory, say class1.php and class2.php inside a directory src/ . class1.php namespace \src\utility\Timer; class Timer{ public static function somefunction(){ } } class2.php namespace \src\utility\Verification; use Timer; class Verification{ Timer::somefunction(); } When I execute class2.php , i get the Fatal error that PHP Fatal error: Class 'Timer' not found in path/to/class2.php at line *** I read somewhere on

问题 Sorry if this is basic, I am trying to learn as much as I can about OO in PHP and I am slowly learning how to use it (very limited). So I am wanting to know if __autoload() has any affect on PHP opcode cache's? 回答1: (Disclaimer : I only know APC) What an opcode cache do is : when a file is included/required, it take the full path to that file check if the opcodes corresponding to that file are already in RAM (in opcode cache) if yes, return those opcode so they are executed if no, load the

问题 This is how I autoload all the classes in my controllers folder, # auto load controller classes function __autoload($class_name) { $filename = 'class_'.strtolower($class_name).'.php'; $file = AP_SITE.'controllers/'.$filename; if (file_exists($file) == false) { return false; } include ($file); } But I have classes in models folder as well and I want to autoload them too - what should I do? Should I duplicate the autoload above and just change the path to models/ (but isn't this repetitive??)?

问题 This is how I autoload all the classes in my controllers folder, # auto load controller classes function __autoload($class_name) { $filename = 'class_'.strtolower($class_name).'.php'; $file = AP_SITE.'controllers/'.$filename; if (file_exists($file) == false) { return false; } include ($file); } But I have classes in models folder as well and I want to autoload them too - what should I do? Should I duplicate the autoload above and just change the path to models/ (but isn't this repetitive??)?