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Considerations of the contains Method | Laravel 5 Collections: Determining If a Collection Contains an Element With contains

The contains method defines two parameters: $key and $value . The $value parameter has a default value of null , however, the two method calls are not the same: 1 use Illuminate \ Support \ Collection ; 2 3 $ collection = new Collection ( [ 4 '...

Testing the Error Page | Creating a Custom Statamic 500 Server Error Page

…We will take advantage of this feature to give our tag a simpler name of {{ 500 }} . In doing so, our tag will also feel more natural when comparing it to the built-in {{ 404 }} tag. To add a tag alias, we simply have to define a static $aliases...

Laravel 5 Collections: Reducing a Multi-Dimensional Collection to a Single Dimension Losing Keys With flatten

The flatten method will return a new Collection instance representing a flattened version of the original collection's items. The flatten method internally makes use of the "Illuminate\Support\Arr::flatten($array)" helper method. The flatten...

Example Use | Laravel 5 Fluent API: The Public API

…first ' ) ; 5 6 $ fluent = new Fluent ( $ testObject ) ; 7 8 // The first value 9 $ message = $ fluent -> get ( ' first ' ) ; 10 11 // null 12 $ willBeNull = $ fluent -> get ( ' does_not_exist ' ) ; The $default value is evaluated using the value...

Fluent and Closures | Laravel 5 Fluent API: The Public API

…sure, such as the above example, the closure instance is stored as the value. The following code will quickly prove this: 1 // true 2 $ isClosure = ( $ fluent -> method instanceof Closure ) : To evaluate the closure and get the results, the value...

Converting the Data Object to Something JSON Serializable With jsonSerialize | Laravel 5 Fluent API: The Public API

…e jsonSerialize method internally returns a call to toArray . Because of this, toArray , jsonSerialize and getAttributes are all functionally equivalent. The jsonSerialize method exists to satisfy PHP's JsonSerializable interface, which allows...

Labeling Cached Content | Creating a Hybrid Cache System for Statamic: Part Five

…nds ( 40 InvalidateAll :: class , 41 ) ; 42 } 43 } 44 } The changes to our cache manager will seem rather extensive, but they all help achieve the same goal: keep track of the unique label namespaces and labels for the current request, with a few...

Laravel 5 Message Bags: Checking if There Are Any Messages With isEmpty

The isEmpty method is the logical opposite of the any method. It returns a boolean value indicating if the message bag is empty (having no messages). It returns true if the message bag is empty; it returns false if the message bag contains...

JavaScript: Checking If a Variable Is Defined

…n set , not necessarily what its value is. We can do that by using this little code snippet: 1 if ( typeof myVariableName === ' undefined ' ) { 2 // The myVariableName is undefined! 3 } Notice that undefined is in quotes. That is because the...

PHP And Apache Output | How Does PHP Work With The Web Server And Browser?

Beginners to PHP programming might often ask questions like "How do I make an image with PHP?" or "How do I make a text box with PHP?". In all honesty, PHP does neither. In a traditional sense, the main goal of PHP is to generate some HTML...