当在Blade 模板中迭代 LazyCollection 实例时,$loop 变量不再可用,因为访问该变量会导致整个 LazyCollection 被加载到内存中,因此在这种情况下使用惰性集合是毫无意义的。Checked / Disabled / Selected Blade DirectivesLikelihood Of Impact: LowThe new @checked, @disabled, and @selected Blade directives may ...
Let’s extend our test_scale() function to support arrays. Let it return another array with preserved keys and scaled values. Because the element of an array may be another array (and recursively deeper), we have to separate the scaling logic into a separate recursive function do_scale()...
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How to print an array in PHP? 1) print_r() function: 2) var_dump() function: 3) json_encode() function: 4) foreach() loop: Introduction An array is one kind of data structure, which can store multiple items of related data types. The printing of an array is one of the fundamen...
异常处理 扩展(extend) PHP 内置的异常处理类 生成器 生成器总览 生成器语法 Comparing generators with Iterator objects 引用的解释 引用是什么 引用做什么 引用不是什么 引用传递 引用返回 取消引用 引用定位 预定义变量 超全局变量— 超全局变量是在全部作用域中始终可用的内置变量 $GLOBALS— 引用全局作用域中可...
debug_zval_dump() now indicates whether an array is packed. Fix GH-12143 (Optimize round). Changed return type of long2ip to string from string|false. Fix GH-12143 (Extend the maximum precision round can handle by one digit). Added the http_get_last_response_headers() and http_clear_las...
This array contains a sample configuration entry for each of the major mail drivers / transports supported by Laravel, while the default configuration value determines which mailer will be used by default when your application needs to send an email message....
Of course, you may also loop over the collection like an array:1foreach ($flights as $flight) { 2 echo $flight->name; 3}Chunking ResultsIf you need to process thousands of Eloquent records, use the chunk command. The chunk method will retrieve a "chunk" of Eloquent models, feeding ...
Description The following code: <?php ini_set('display_errors', '1'); ini_set('display_startup_errors', '1'); error_reporting(E_ALL); // store processes in an array as [$pid => $process, ...] $processes = []; // catch signals from child ...
Models communicate with F3's data mappers and the SQL helper for more complex interactions with various database engines. Other plug-ins extend the base functionality even more. It's a total Web development framework - with a lot of muscle!