Lumen - helpers compatibility

Helpers.php

<?php

use Illuminate\Contracts\Support\Htmlable;
use Illuminate\Support\Arr;
use Illuminate\Support\Collection;
use Illuminate\Support\Debug\Dumper;
use Illuminate\Support\HtmlString;
use Illuminate\Support\Str;

if (! function_exists('append_config')) {
    /**
     * Assign high numeric IDs to a config item to force appending.
     *
     * @param  array  $array
     * @return array
     */
    function append_config(array $array)
    {
        $start = 9999;

        foreach ($array as $key => $value) {
            if (is_numeric($key)) {
                $start++;

                $array[$start] = Arr::pull($array, $key);
            }
        }

        return $array;
    }
}

if (! function_exists('array_add')) {
    /**
     * Add an element to an array using "dot" notation if it doesn't exist.
     *
     * @param  array   $array
     * @param  string  $key
     * @param  mixed   $value
     * @return array
     */
    function array_add($array, $key, $value)
    {
        return Arr::add($array, $key, $value);
    }
}

if (! function_exists('array_build')) {
    /**
     * Build a new array using a callback.
     *
     * @param  array  $array
     * @param  callable  $callback
     * @return array
     *
     * @deprecated since version 5.2.
     */
    function array_build($array, callable $callback)
    {
        return Arr::build($array, $callback);
    }
}

if (! function_exists('array_collapse')) {
    /**
     * Collapse an array of arrays into a single array.
     *
     * @param  array  $array
     * @return array
     */
    function array_collapse($array)
    {
        return Arr::collapse($array);
    }
}

if (! function_exists('array_divide')) {
    /**
     * Divide an array into two arrays. One with keys and the other with values.
     *
     * @param  array  $array
     * @return array
     */
    function array_divide($array)
    {
        return Arr::divide($array);
    }
}

if (! function_exists('array_dot')) {
    /**
     * Flatten a multi-dimensional associative array with dots.
     *
     * @param  array   $array
     * @param  string  $prepend
     * @return array
     */
    function array_dot($array, $prepend = '')
    {
        return Arr::dot($array, $prepend);
    }
}

if (! function_exists('array_except')) {
    /**
     * Get all of the given array except for a specified array of items.
     *
     * @param  array  $array
     * @param  array|string  $keys
     * @return array
     */
    function array_except($array, $keys)
    {
        return Arr::except($array, $keys);
    }
}

if (! function_exists('array_first')) {
    /**
     * Return the first element in an array passing a given truth test.
     *
     * @param  array  $array
     * @param  callable|null  $callback
     * @param  mixed  $default
     * @return mixed
     */
    function array_first($array, callable $callback = null, $default = null)
    {
        return Arr::first($array, $callback, $default);
    }
}

if (! function_exists('array_flatten')) {
    /**
     * Flatten a multi-dimensional array into a single level.
     *
     * @param  array  $array
     * @param  int  $depth
     * @return array
     */
    function array_flatten($array, $depth = INF)
    {
        return Arr::flatten($array, $depth);
    }
}

if (! function_exists('array_forget')) {
    /**
     * Remove one or many array items from a given array using "dot" notation.
     *
     * @param  array  $array
     * @param  array|string  $keys
     * @return void
     */
    function array_forget(&$array, $keys)
    {
        return Arr::forget($array, $keys);
    }
}

if (! function_exists('array_get')) {
    /**
     * Get an item from an array using "dot" notation.
     *
     * @param  \ArrayAccess|array  $array
     * @param  string  $key
     * @param  mixed   $default
     * @return mixed
     */
    function array_get($array, $key, $default = null)
    {
        return Arr::get($array, $key, $default);
    }
}

if (! function_exists('array_has')) {
    /**
     * Check if an item exists in an array using "dot" notation.
     *
     * @param  \ArrayAccess|array  $array
     * @param  string  $key
     * @return bool
     */
    function array_has($array, $key)
    {
        return Arr::has($array, $key);
    }
}

if (! function_exists('array_last')) {
    /**
     * Return the last element in an array passing a given truth test.
     *
     * @param  array  $array
     * @param  callable|null  $callback
     * @param  mixed  $default
     * @return mixed
     */
    function array_last($array, callable $callback = null, $default = null)
    {
        return Arr::last($array, $callback, $default);
    }
}

if (! function_exists('array_only')) {
    /**
     * Get a subset of the items from the given array.
     *
     * @param  array  $array
     * @param  array|string  $keys
     * @return array
     */
    function array_only($array, $keys)
    {
        return Arr::only($array, $keys);
    }
}

if (! function_exists('array_pluck')) {
    /**
     * Pluck an array of values from an array.
     *
     * @param  array   $array
     * @param  string|array  $value
     * @param  string|array|null  $key
     * @return array
     */
    function array_pluck($array, $value, $key = null)
    {
        return Arr::pluck($array, $value, $key);
    }
}

if (! function_exists('array_prepend')) {
    /**
     * Push an item onto the beginning of an array.
     *
     * @param  array  $array
     * @param  mixed  $value
     * @param  mixed  $key
     * @return array
     */
    function array_prepend($array, $value, $key = null)
    {
        return Arr::prepend($array, $value, $key);
    }
}

if (! function_exists('array_pull')) {
    /**
     * Get a value from the array, and remove it.
     *
     * @param  array   $array
     * @param  string  $key
     * @param  mixed   $default
     * @return mixed
     */
    function array_pull(&$array, $key, $default = null)
    {
        return Arr::pull($array, $key, $default);
    }
}

if (! function_exists('array_set')) {
    /**
     * Set an array item to a given value using "dot" notation.
     *
     * If no key is given to the method, the entire array will be replaced.
     *
     * @param  array   $array
     * @param  string  $key
     * @param  mixed   $value
     * @return array
     */
    function array_set(&$array, $key, $value)
    {
        return Arr::set($array, $key, $value);
    }
}

if (! function_exists('array_sort')) {
    /**
     * Sort the array using the given callback.
     *
     * @param  array  $array
     * @param  callable  $callback
     * @return array
     */
    function array_sort($array, callable $callback)
    {
        return Arr::sort($array, $callback);
    }
}

if (! function_exists('array_sort_recursive')) {
    /**
     * Recursively sort an array by keys and values.
     *
     * @param  array  $array
     * @return array
     */
    function array_sort_recursive($array)
    {
        return Arr::sortRecursive($array);
    }
}

if (! function_exists('array_where')) {
    /**
     * Filter the array using the given callback.
     *
     * @param  array  $array
     * @param  callable  $callback
     * @return array
     */
    function array_where($array, callable $callback)
    {
        return Arr::where($array, $callback);
    }
}

if (! function_exists('asset')) {
    /**
     * Generate an asset path for the application.
     *
     * @param  string  $path
     * @param  bool    $secure
     * @return string
     */
    function asset($path, $secure = null)
    {
        return app('url')->asset($path, $secure);
    }
}

if (! function_exists('camel_case')) {
    /**
     * Convert a value to camel case.
     *
     * @param  string  $value
     * @return string
     */
    function camel_case($value)
    {
        return Str::camel($value);
    }
}

if (! function_exists('class_basename')) {
    /**
     * Get the class "basename" of the given object / class.
     *
     * @param  string|object  $class
     * @return string
     */
    function class_basename($class)
    {
        $class = is_object($class) ? get_class($class) : $class;

        return basename(str_replace('\\', '/', $class));
    }
}

if (! function_exists('class_uses_recursive')) {
    /**
     * Returns all traits used by a class, its subclasses and trait of their traits.
     *
     * @param  string  $class
     * @return array
     */
    function class_uses_recursive($class)
    {
        $results = [];

        foreach (array_merge([$class => $class], class_parents($class)) as $class) {
            $results += trait_uses_recursive($class);
        }

        return array_unique($results);
    }
}

if (! function_exists('collect')) {
    /**
     * Create a collection from the given value.
     *
     * @param  mixed  $value
     * @return \Illuminate\Support\Collection
     */
    function collect($value = null)
    {
        return new Collection($value);
    }
}

if (! function_exists('data_fill')) {
    /**
     * Fill in data where it's missing.
     *
     * @param  mixed   $target
     * @param  string|array  $key
     * @param  mixed  $value
     * @return mixed
     */
    function data_fill(&$target, $key, $value)
    {
        return data_set($target, $key, $value, false);
    }
}

if (! function_exists('data_get')) {
    /**
     * Get an item from an array or object using "dot" notation.
     *
     * @param  mixed   $target
     * @param  string|array  $key
     * @param  mixed   $default
     * @return mixed
     */
    function data_get($target, $key, $default = null)
    {
        if (is_null($key)) {
            return $target;
        }

        $key = is_array($key) ? $key : explode('.', $key);

        while (($segment = array_shift($key)) !== null) {
            if ($segment === '*') {
                if ($target instanceof Collection) {
                    $target = $target->all();
                } elseif (! is_array($target)) {
                    return value($default);
                }

                $result = Arr::pluck($target, $key);

                return in_array('*', $key) ? Arr::collapse($result) : $result;
            }

            if (Arr::accessible($target) && Arr::exists($target, $segment)) {
                $target = $target[$segment];
            } elseif (is_object($target) && isset($target->{$segment})) {
                $target = $target->{$segment};
            } else {
                return value($default);
            }
        }

        return $target;
    }
}

if (! function_exists('data_set')) {
    /**
     * Set an item on an array or object using dot notation.
     *
     * @param  mixed  $target
     * @param  string|array  $key
     * @param  mixed  $value
     * @param  bool  $overwrite
     * @return mixed
     */
    function data_set(&$target, $key, $value, $overwrite = true)
    {
        $segments = is_array($key) ? $key : explode('.', $key);

        if (($segment = array_shift($segments)) === '*') {
            if (! Arr::accessible($target)) {
                $target = [];
            }

            if ($segments) {
                foreach ($target as &$inner) {
                    data_set($inner, $segments, $value, $overwrite);
                }
            } elseif ($overwrite) {
                foreach ($target as &$inner) {
                    $inner = $value;
                }
            }
        } elseif (Arr::accessible($target)) {
            if ($segments) {
                if (! Arr::exists($target, $segment)) {
                    $target[$segment] = [];
                }

                data_set($target[$segment], $segments, $value, $overwrite);
            } elseif ($overwrite || ! Arr::exists($target, $segment)) {
                $target[$segment] = $value;
            }
        } elseif (is_object($target)) {
            if ($segments) {
                if (! isset($target->{$segment})) {
                    $target->{$segment} = [];
                }

                data_set($target->{$segment}, $segments, $value, $overwrite);
            } elseif ($overwrite || ! isset($target->{$segment})) {
                $target->{$segment} = $value;
            }
        } else {
            $target = [];

            if ($segments) {
                data_set($target[$segment], $segments, $value, $overwrite);
            } elseif ($overwrite) {
                $target[$segment] = $value;
            }
        }

        return $target;
    }
}

if (! function_exists('dd')) {
    /**
     * Dump the passed variables and end the script.
     *
     * @param  mixed
     * @return void
     */
    function dd()
    {
        array_map(function ($x) {
            (new Dumper)->dump($x);
        }, func_get_args());

        die(1);
    }
}

if (! function_exists('e')) {
    /**
     * Escape HTML entities in a string.
     *
     * @param  \Illuminate\Contracts\Support\Htmlable|string  $value
     * @return string
     */
    function e($value)
    {
        if ($value instanceof Htmlable) {
            return $value->toHtml();
        }

        return htmlentities($value, ENT_QUOTES, 'UTF-8', false);
    }
}

if (! function_exists('ends_with')) {
    /**
     * Determine if a given string ends with a given substring.
     *
     * @param  string  $haystack
     * @param  string|array  $needles
     * @return bool
     */
    function ends_with($haystack, $needles)
    {
        return Str::endsWith($haystack, $needles);
    }
}

if (! function_exists('head')) {
    /**
     * Get the first element of an array. Useful for method chaining.
     *
     * @param  array  $array
     * @return mixed
     */
    function head($array)
    {
        return reset($array);
    }
}

if (! function_exists('last')) {
    /**
     * Get the last element from an array.
     *
     * @param  array  $array
     * @return mixed
     */
    function last($array)
    {
        return end($array);
    }
}

if (! function_exists('mix')) {
    /**
     * Get the path to a versioned Mix file.
     *
     * @param  string  $path
     * @param  string  $manifestDirectory
     * @return \Illuminate\Support\HtmlString
     *
     * @throws \Exception
     */
    function mix($path, $manifestDirectory = '')
    {
        static $manifests = [];

        if (! Str::startsWith($path, '/')) {
            $path = "/{$path}";
        }

        if ($manifestDirectory && ! Str::startsWith($manifestDirectory, '/')) {
            $manifestDirectory = "/{$manifestDirectory}";
        }

        if (file_exists(public_path($manifestDirectory.'/hot'))) {
            $url = file_get_contents(public_path($manifestDirectory.'/hot'));

            if (Str::startsWith($url, ['http://', 'https://'])) {
                return new HtmlString(Str::after($url, ':').$path);
            }

            return new HtmlString("//localhost:8080{$path}");
        }

        $manifestPath = public_path($manifestDirectory.'/mix-manifest.json');

        if (! isset($manifests[$manifestPath])) {
            if (! file_exists($manifestPath)) {
                throw new Exception('The Mix manifest does not exist.');
            }

            $manifests[$manifestPath] = json_decode(file_get_contents($manifestPath), true);
        }

        $manifest = $manifests[$manifestPath];

        if (! isset($manifest[$path])) {
            report(new Exception("Unable to locate Mix file: {$path}."));

            if (! app('config')->get('app.debug')) {
                return $path;
            }
        }

        return new HtmlString($manifestDirectory.$manifest[$path]);
    }
}

if (! function_exists('object_get')) {
    /**
     * Get an item from an object using "dot" notation.
     *
     * @param  object  $object
     * @param  string  $key
     * @param  mixed   $default
     * @return mixed
     */
    function object_get($object, $key, $default = null)
    {
        if (is_null($key) || trim($key) == '') {
            return $object;
        }

        foreach (explode('.', $key) as $segment) {
            if (! is_object($object) || ! isset($object->{$segment})) {
                return value($default);
            }

            $object = $object->{$segment};
        }

        return $object;
    }
}

if (! function_exists('preg_replace_sub')) {
    /**
     * Replace a given pattern with each value in the array in sequentially.
     *
     * @param  string  $pattern
     * @param  array   $replacements
     * @param  string  $subject
     * @return string
     */
    function preg_replace_sub($pattern, &$replacements, $subject)
    {
        return preg_replace_callback($pattern, function ($match) use (&$replacements) {
            foreach ($replacements as $key => $value) {
                return array_shift($replacements);
            }
        }, $subject);
    }
}

if (! function_exists('public_path')) {
    /**
     * Get the path to the public folder.
     *
     * @param  string  $path
     * @return string
     */
    function public_path($path = '')
    {
        // return app()->make('path.public').($path ? '/'.ltrim($path, '/') : $path);
        return app()->basePath('public').($path ? '/'.$path : $path);
        // return base_path('public');
    }
}

if (! function_exists('snake_case')) {
    /**
     * Convert a string to snake case.
     *
     * @param  string  $value
     * @param  string  $delimiter
     * @return string
     */
    function snake_case($value, $delimiter = '_')
    {
        return Str::snake($value, $delimiter);
    }
}

if (! function_exists('starts_with')) {
    /**
     * Determine if a given string starts with a given substring.
     *
     * @param  string  $haystack
     * @param  string|array  $needles
     * @return bool
     */
    function starts_with($haystack, $needles)
    {
        return Str::startsWith($haystack, $needles);
    }
}

if (! function_exists('str_contains')) {
    /**
     * Determine if a given string contains a given substring.
     *
     * @param  string  $haystack
     * @param  string|array  $needles
     * @return bool
     */
    function str_contains($haystack, $needles)
    {
        return Str::contains($haystack, $needles);
    }
}

if (! function_exists('str_finish')) {
    /**
     * Cap a string with a single instance of a given value.
     *
     * @param  string  $value
     * @param  string  $cap
     * @return string
     */
    function str_finish($value, $cap)
    {
        return Str::finish($value, $cap);
    }
}

if (! function_exists('str_is')) {
    /**
     * Determine if a given string matches a given pattern.
     *
     * @param  string  $pattern
     * @param  string  $value
     * @return bool
     */
    function str_is($pattern, $value)
    {
        return Str::is($pattern, $value);
    }
}

if (! function_exists('str_limit')) {
    /**
     * Limit the number of characters in a string.
     *
     * @param  string  $value
     * @param  int     $limit
     * @param  string  $end
     * @return string
     */
    function str_limit($value, $limit = 100, $end = '...')
    {
        return Str::limit($value, $limit, $end);
    }
}

if (! function_exists('str_plural')) {
    /**
     * Get the plural form of an English word.
     *
     * @param  string  $value
     * @param  int     $count
     * @return string
     */
    function str_plural($value, $count = 2)
    {
        return Str::plural($value, $count);
    }
}

if (! function_exists('str_random')) {
    /**
     * Generate a more truly "random" alpha-numeric string.
     *
     * @param  int  $length
     * @return string
     *
     * @throws \RuntimeException
     */
    function str_random($length = 16)
    {
        return Str::random($length);
    }
}

if (! function_exists('str_replace_array')) {
    /**
     * Replace a given value in the string sequentially with an array.
     *
     * @param  string  $search
     * @param  array   $replace
     * @param  string  $subject
     * @return string
     */
    function str_replace_array($search, array $replace, $subject)
    {
        foreach ($replace as $value) {
            $subject = preg_replace('/'.$search.'/', $value, $subject, 1);
        }

        return $subject;
    }
}

if (! function_exists('str_replace_first')) {
    /**
     * Replace the first occurrence of a given value in the string.
     *
     * @param  string  $search
     * @param  string  $replace
     * @param  string  $subject
     * @return string
     */
    function str_replace_first($search, $replace, $subject)
    {
        return Str::replaceFirst($search, $replace, $subject);
    }
}

if (! function_exists('str_replace_last')) {
    /**
     * Replace the last occurrence of a given value in the string.
     *
     * @param  string  $search
     * @param  string  $replace
     * @param  string  $subject
     * @return string
     */
    function str_replace_last($search, $replace, $subject)
    {
        return Str::replaceLast($search, $replace, $subject);
    }
}

if (! function_exists('str_singular')) {
    /**
     * Get the singular form of an English word.
     *
     * @param  string  $value
     * @return string
     */
    function str_singular($value)
    {
        return Str::singular($value);
    }
}

if (! function_exists('str_slug')) {
    /**
     * Generate a URL friendly "slug" from a given string.
     *
     * @param  string  $title
     * @param  string  $separator
     * @return string
     */
    function str_slug($title, $separator = '-')
    {
        return Str::slug($title, $separator);
    }
}

if (! function_exists('studly_case')) {
    /**
     * Convert a value to studly caps case.
     *
     * @param  string  $value
     * @return string
     */
    function studly_case($value)
    {
        return Str::studly($value);
    }
}

if (! function_exists('title_case')) {
    /**
     * Convert a value to title case.
     *
     * @param  string  $value
     * @return string
     */
    function title_case($value)
    {
        return Str::title($value);
    }
}

if (! function_exists('trait_uses_recursive')) {
    /**
     * Returns all traits used by a trait and its traits.
     *
     * @param  string  $trait
     * @return array
     */
    function trait_uses_recursive($trait)
    {
        $traits = class_uses($trait);

        foreach ($traits as $trait) {
            $traits += trait_uses_recursive($trait);
        }

        return $traits;
    }
}

if (! function_exists('value')) {
    /**
     * Return the default value of the given value.
     *
     * @param  mixed  $value
     * @return mixed
     */
    function value($value)
    {
        return $value instanceof Closure ? $value() : $value;
    }
}

if (! function_exists('windows_os')) {
    /**
     * Determine whether the current environment is Windows based.
     *
     * @return bool
     */
    function windows_os()
    {
        return strtolower(substr(PHP_OS, 0, 3)) === 'win';
    }
}

if (! function_exists('with')) {
    /**
     * Return the given object. Useful for chaining.
     *
     * @param  mixed  $object
     * @return mixed
     */
    function with($object)
    {
        return $object;
    }
}

Only include needed functions:

<?php

use Illuminate\Support\Str;

if (! function_exists('asset')) {
    /**
     * Generate an asset path for the application.
     *
     * @param  string  $path
     * @param  bool    $secure
     * @return string
     */
    function asset($path, $secure = null)
    {
        return app('url')->asset($path, $secure);
    }
}

if (! function_exists('str_random')) {
    /**
     * Generate a more truly "random" alpha-numeric string.
     *
     * @param  int  $length
     * @return string
     *
     * @throws \RuntimeException
     */
    function str_random($length = 16)
    {
        return Str::random($length);
    }
}

Add files to autoload.files section of composer.json:

"autoload": {
  "files": [
    "app/Helpers.php"
  ],
  "psr-4": {
    "App\\": "app/"
  }
},