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                <?php namespace Fenos\Notifynder\Builder;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Illuminate\Contracts\Config\Repository;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use InvalidArgumentException;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Carbon\Carbon;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Class BuilderRules  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Simple trait that define the rules that  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * the builder has to match. It required mandatory  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * fields listed in the $requiredFields property  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @package Fenos\Notifynder\Builder  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                trait BuilderRules  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @var array  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private $requiredFields = ['from_id','to_id','url','category_id'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Value has to be a string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param $value  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return bool  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected function isString($value)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (! is_string($value)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            throw new InvalidArgumentException("The value Passed is not a string"); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return true;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Value has to be a valid Carbon Instance  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param $value  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return bool | InvalidArgumentException  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected function isCarbon($value)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if($value instanceof Carbon) return true;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        throw new InvalidArgumentException("The value Passed has to be an instance of Carbon\Carbon"); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Value has to be numeric  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param $value  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return bool  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                     */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    protected function isNumeric($value)  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if (! is_numeric($value)) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            throw new InvalidArgumentException("The value Passed must be a number"); | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        return true;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Returns all required fields including the config ones  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return array  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function getRequiredFields()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (property_exists($this,'config') && $this->config instanceof Repository) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $customRequiredFields = $this->config->get('notifynder.additional_fields.required'); | 
            
                            
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                        } else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $customRequiredFields = [];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return array_unique($this->requiredFields + $customRequiredFields);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Check that the builder has  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * the required field to send the  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * notifications correctly  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param $array  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return bool  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function hasRequiredFields($array)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        foreach ($this->getRequiredFields() as $field) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            if (! array_key_exists($field, $array)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                return false;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return true;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Check if is a required field  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param $offset  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return bool  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function isRequiredField($offset)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return (in_array($offset,$this->getRequiredFields()));  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Check if the array passed is  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * multidimensional  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param $arr  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return bool  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected function isReadyArrToFormatInJson(array $arr)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                         if ($this->isAssociativeArr($arr)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                             return true;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                         }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (count($arr) > 0) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $error = "The 'extra' value must to be an associative array";  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            throw new InvalidArgumentException($error);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return false;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param array $arr  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return bool  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected function isAssociativeArr(array $arr)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return array_keys($arr) !== range(0, count($arr) - 1);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    141
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    142
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                    143
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    144
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                     * Check if the array is  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    145
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                     * multidimensional  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    146
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    147
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                     * @param $arr  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    148
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                     * @return bool  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    149
                 | 
                                    
                                                     | 
                
                 | 
                     */  | 
            
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
                | 
                    150
                 | 
                                    
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                View Code Duplication | 
                    public function isMultidimensionalArray($arr)  | 
            
                            
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                    151
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    152
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                        $rv = array_filter($arr, 'is_array');  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    153
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                        if (count($rv) > 0) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    154
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                            return true;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    155
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    156
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                    157
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                        return false;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    158
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    159
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                 | 
                }  | 
            
            
                                                        
            
                                    
            
            
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In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: