Helpers

Winter includes a variety of "helper" PHP functions. Many of these functions are used internally by Winter itself, however, you are free to use them in your own plugins and applications if you find them useful.

Arrays

For more useful methods, you should also review the Laravel Arr::*() helpers.

Paths

Strings

For more useful methods, you should also review the Laravel Str::*() helpers.

SVG

Miscellaneous

#Arrays

#array_add()

The array_add function adds a given key / value pair to the array if the given key doesn't already exist in the array:

$array = array_add(['name' => 'Desk'], 'price', 100);

// ['name' => 'Desk', 'price' => 100]

#array_divide()

The array_divide function returns two arrays, one containing the keys, and the other containing the values of the original array:

list($keys, $values) = array_divide(['name' => 'Desk']);

// $keys: ['name']

// $values: ['Desk']

#array_dot()

The array_dot function flattens a multi-dimensional array into a single level array that uses "dot" notation to indicate depth:

$array = array_dot(['foo' => ['bar' => 'baz']]);

// ['foo.bar' => 'baz'];

#array_undot()

The array_undot function is the counter-part to the array_dot method. It will convert a dot-notated array into a standard associative array:

$array = array_undot([
    'foo.bar' => 'baz'
]);

// [
//    'foo' => [
//        'bar' => 'baz'
//    ]
// ]

#array_except()

The array_except method removes the given key / value pairs from the array:

$array = ['name' => 'Desk', 'price' => 100];

$array = array_except($array, ['price']);

// ['name' => 'Desk']

#array_first()

The array_first method returns the first element of an array passing a given truth test:

$array = [100, 200, 300];

$value = array_first($array, function ($key, $value) {
    return $value >= 150;
});

// 200

A default value may also be passed as the third parameter to the method. This value will be returned if no value passes the truth test:

$value = array_first($array, $callback, $default);

#array_flatten()

The array_flatten method will flatten a multi-dimensional array into a single level.

$array = ['name' => 'Joe', 'languages' => ['PHP', 'Ruby']];

$array = array_flatten($array);

// ['Joe', 'PHP', 'Ruby'];

#array_forget()

The array_forget method removes a given key / value pair from a deeply nested array using "dot" notation:

$array = ['products' => ['desk' => ['price' => 100]]];

array_forget($array, 'products.desk');

// ['products' => []]

#array_get()

The array_get method retrieves a value from a deeply nested array using "dot" notation:

$array = ['products' => ['desk' => ['price' => 100]]];

$value = array_get($array, 'products.desk');

// ['price' => 100]

The array_get function also accepts a default value, which will be returned if the specific key is not found:

$value = array_get($array, 'names.john', 'default');

#array_only()

The array_only method will return only the specified key / value pairs from the given array:

$array = ['name' => 'Desk', 'price' => 100, 'orders' => 10];

$array = array_only($array, ['name', 'price']);

// ['name' => 'Desk', 'price' => 100]

#array_pluck()

The array_pluck method will pluck a list of the given key / value pairs from the array:

$array = [
    ['developer' => ['name' => 'Brian']],
    ['developer' => ['name' => 'Stewie']]
];

$array = array_pluck($array, 'developer.name');

// ['Brian', 'Stewie'];

#array_pull()

The array_pull method returns and removes a key / value pair from the array:

$array = ['name' => 'Desk', 'price' => 100];

$name = array_pull($array, 'name');

// $name: Desk

// $array: ['price' => 100]

#array_set()

The array_set method sets a value within a deeply nested array using "dot" notation:

$array = ['products' => ['desk' => ['price' => 100]]];

array_set($array, 'products.desk.price', 200);

// ['products' => ['desk' => ['price' => 200]]]

#array_sort()

The array_sort method sorts the array by the results of the given Closure:

$array = [
    ['name' => 'Desk'],
    ['name' => 'Chair'],
];

$array = array_values(array_sort($array, function ($value) {
    return $value['name'];
}));

/*
    [
        ['name' => 'Chair'],
        ['name' => 'Desk'],
    ]
*/

#array_sort_recursive()

The array_sort_recursive function recursively sorts the array using the sort function:

$array = [
    [
        'Brian',
        'Shannon',
        'Alec',
    ],
    [
        'PHP',
        'Ruby',
        'JavaScript',
    ],
];

$array = array_sort_recursive($array);

/*
    [
        [
            'Alec',
            'Brian',
            'Shannon',
        ],
        [
            'JavaScript',
            'PHP',
            'Ruby',
        ]
    ];
*/

#array_where()

The array_where function filters the array using the given Closure:

$array = [100, '200', 300, '400', 500];

$array = array_where($array, function ($value, $key) {
    return is_string($value);
});

// [1 => 200, 3 => 400]

#head()

The head function simply returns the first element in the given array:

$array = [100, 200, 300];

$first = head($array);

// 100

#last()

The last function returns the last element in the given array:

$array = [100, 200, 300];

$last = last($array);

// 300

#Paths

#Path Symbols

Path prefix symbols can be used to create a dynamic path. For example, a path beginning with ~/ will create a path relative to the application:

list: ~/plugins/acme/pay/models/invoiceitem/columns.yaml

These symbols are supported for creating dynamic paths:

#app_path()

The app_path function returns the fully qualified path to the app directory:

$path = app_path();

You may also use the app_path function to generate a fully qualified path to a given file relative to the application directory:

$path = app_path('Http/Controllers/Controller.php');

#base_path()

The base_path function returns the fully qualified path to the project root:

$path = base_path();

You may also use the base_path function to generate a fully qualified path to a given file relative to the application directory:

$path = base_path('vendor/bin');

#config_path()

The config_path function returns the fully qualified path to the application configuration directory:

$path = config_path();

You may also use the config_path function to generate a fully qualified path to a given file relative to the config directory:

$path = config_path('dev/cms.php');

#database_path()

The database_path function returns the fully qualified path to the application's database directory:

$path = database_path();

#media_path()

The media_path function returns the fully qualified path to the application media directory:

$path = media_path();

You may also use the media_path function to generate a fully qualified path to a given file relative to the media directory:

$path = media_path('images/myimage.png');

#plugins_path()

The plugins_path function returns the fully qualified path to the application plugin directory:

$path = plugins_path();

You may also use the plugins_path function to generate a fully qualified path to a given file relative to the plugins directory:

$path = plugins_path('author/plugin/routes.php');

#public_path()

The public_path function returns the fully qualified path to the public directory:

$path = public_path();

#storage_path()

The storage_path function returns the fully qualified path to the storage directory:

$path = storage_path();

You may also use the storage_path function to generate a fully qualified path to a given file relative to the storage directory:

$path = storage_path('app/file.txt');

#temp_path()

The temp_path function returns the fully qualified path to a writable directory for temporary files:

$path = temp_path();

You may also use the temp_path function to generate a fully qualified path to a given file relative to the temp directory:

$path = temp_path('app/file.txt');

#themes_path()

The themes_path function returns the fully qualified path to the themes directory:

$path = themes_path();

You may also use the themes_path function to generate a fully qualified path to a given file relative to the themes directory:

$path = themes_path('mytheme/file.txt');

#uploads_path()

The uploads_path function returns the fully qualified path to the application uploads directory:

$path = uploads_path();

You may also use the uploads_path function to generate a fully qualified path to a given file relative to the uploads directory:

$path = uploads_path('public/file.txt');

#Strings

#camel_case()

The camel_case function converts the given string to camelCase:

$camel = camel_case('foo_bar');

// fooBar

#class_basename()

The class_basename returns the class name of the given class with the class' namespace removed:

$class = class_basename('Foo\Bar\Baz');

// Baz

#e()

The e function runs htmlentities over the given string:

echo e('<html>foo</html>');

// &lt;html&gt;foo&lt;/html&gt;

#ends_with()

The ends_with function determines if the given string ends with the given value:

$value = ends_with('This is my name', 'name');

// true

#snake_case()

The snake_case function converts the given string to snake_case:

$snake = snake_case('fooBar');

// foo_bar

#str_limit()

The str_limit function limits the number of characters in a string. The function accepts a string as its first argument and the maximum number of resulting characters as its second argument:

$value = str_limit('The CMS platform that gets back to basics.', 6);

// The CMS...

#starts_with()

The starts_with function determines if the given string begins with the given value:

$value = starts_with('The cow goes moo', 'The');

// true

#str_contains()

The str_contains function determines if the given string contains the given value:

$value = str_contains('The bird goes tweet', 'bird');

// true

#str_finish()

The str_finish function adds a single instance of the given value to a string:

$string = str_finish('this/string', '/');

// this/string/

#str_is()

The str_is function determines if a given string matches a given pattern. Asterisks may be used to indicate wildcards:

$value = str_is('foo*', 'foobar');

// true

$value = str_is('baz*', 'foobar');

// false

#str_plural()

The str_plural function converts a string to its plural form. This function currently only supports the English language:

$plural = str_plural('car');

// cars

$plural = str_plural('child');

// children

#str_random()

The str_random function generates a random string of the specified length:

$string = str_random(40);

#str_singular()

The str_singular function converts a string to its singular form. This function currently only supports the English language:

$singular = str_singular('cars');

// car

#str_slug()

The str_slug function generates a URL friendly "slug" from the given string:

$title = str_slug("Winter CMS", "-");

// winter-cms

#studly_case()

The studly_case function converts the given string to StudlyCase:

$value = studly_case('foo_bar');

// FooBar

#trans()

The trans function translates the given language line using your localization files:

echo trans('validation.required'):

#trans_choice()

The trans_choice function translates the given language line with inflection:

$value = trans_choice('foo.bar', $count);

#SVG

Winter includes a simple SVG utility that allows you to extract sanitized SVG markup from a given path. This can be useful for sanitization, or for using SVG markup directly in your themes.

#Svg::extract()

The extract method allows you to extract the sanitized SVG markup in a given path. Sanitization prevents the use of JavaScript, remote sources and CSS imports, stopping common attack vectors within SVG code.

$svg = Svg::extract('/path/to/image.svg');

By default, the output SVG markup is minified. The second parameter allows you to disable this by setting it to false.

$unminifiedSvg = Svg::extract('/path/to/image.svg', false);

#Svg::sanitize()

The sanitize method allows you to sanitize the provided SVG markup. Sanitization prevents the use of JavaScript, remote sources and CSS imports, stopping common attack vectors within SVG code.

$svg = Svg::sanitize($untrustedSvgContent);

By default, the output SVG markup is minified. The second parameter allows you to disable this by setting it to false.

$unminifiedSvg = Svg::sanitize($untrustedSvgContent, false);

#Miscellaneous

#asset()

Generate a URL for an asset using the current scheme of the request (HTTP or HTTPS):

$url = asset('img/photo.jpg');

You can configure the asset URL host by setting the ASSET_URL variable in your .env file (or asset_url in your config/app.php file). This can be useful if you host your assets on an external service like Amazon S3 or another CDN:

// ASSET_URL=http://example.com/assets

$url = asset('img/photo.jpg'); // http://example.com/assets/img/photo.jpg

#config()

The config function gets the value of a configuration variable. The configuration values may be accessed using "dot" syntax, which includes the name of the file and the option you wish to access. A default value may be specified and is returned if the configuration option does not exist:

$value = config('app.timezone');

$value = config('app.timezone', $default);

The config helper may also be used to set configuration variables at runtime by passing an array of key / value pairs:

config(['app.debug' => true]);

#dd()

The dd function dumps the given variable and ends execution of the script:

dd($value);

#env()

The env function gets the value of an environment variable or returns a default value:

$env = env('APP_ENV');

// Return a default value if the variable doesn't exist...
$env = env('APP_ENV', 'production');

#get()

The get function obtains an input item from the request, restricted to GET variables only:

$value = get('key', $default = null)

#input()

The input function obtains an input item from the request:

$value = input('key', $default = null)

#post()

The post function obtains an input item from the request, restricted to POST variables only:

$value = post('key', $default = null)

#redirect()

The redirect function return an instance of the redirector to do redirect responses:

return redirect('/home');

#request()

The request function returns the current request instance:

$referer = request()->header('referer');

#response()

The response function creates a response instance or obtains an instance of the response factory:

return response('Hello World', 200, $headers);

return response()->json(['foo' => 'bar'], 200, $headers);

#route()

The route function generates a URL for the given named route:

$url = route('routeName');

If the route accepts parameters, you may pass them as the second argument to the method:

$url = route('routeName', ['id' => 1]);

#secure_asset()

Generate a URL for an asset using HTTPS:

echo secure_asset('foo/bar.zip', $title, $attributes = []);

#trace_log()

The trace_log function writes a trace message to the log file.

trace_log('This code has passed...');

The function supports passing exceptions, arrays and objects:

trace_log($exception);

trace_log($array);

trace_log($object);

You may also pass multiple arguments to trace multiple messages:

trace_log($value1, $value2, $exception, '...');

#trace_sql()

The trace_sql function enables database logging and begins to monitor all SQL output.

trace_sql();

Db::table('users')->count();

// select count(*) as aggregate from users

#url()

The url function generates a fully qualified URL to the given path:

echo url('user/profile');

echo url('user/profile', [1]);