Class Helper

Helper class

This class defines various static utility functions that are in use throughout the Omnipay system.

Namespace: Omnipay\Common
Located at Common/Helper.php

Methods summary
`public static string`	# `camelCase( string $str )` Convert a string to camelCase. Strings already in camelCase will not be harmed. Convert a string to camelCase. Strings already in camelCase will not be harmed. Parameters `$str` The input string Returns string camelCased output string
`protected static string`	# `convertToLowercase( string $str )` Convert strings with underscores to be all lowercase before camelCase is preformed. Convert strings with underscores to be all lowercase before camelCase is preformed. Parameters `$str` The input string Returns string The output string
`public static boolean`	# `validateLuhn( string $number )` Validate a card number according to the Luhn algorithm. Validate a card number according to the Luhn algorithm. Parameters `$number` The card number to validate Returns boolean True if the supplied card number is valid
`public static`	# `initialize( mixed $target, array $parameters )` Initialize an object with a given array of parameters Initialize an object with a given array of parameters Parameters are automatically converted to camelCase. Any parameters which do not match a setter on the target object are ignored. Parameters `$target` The object to set parameters on `$parameters` An array of parameters to set
`public static`	# `getGatewayShortName( $className )` Resolve a gateway class to a short name. Resolve a gateway class to a short name. The short name can be used with GatewayFactory as an alias of the gateway class, to create new instances of a gateway.
`public static string`	# `getGatewayClassName( string $shortName )` Resolve a short gateway name to a full namespaced gateway class. Resolve a short gateway name to a full namespaced gateway class. Class names beginning with a namespace marker () are left intact. Non-namespaced classes are expected to be in the \Omnipay namespace, e.g.: \Custom\Gateway => \Custom\Gateway \Custom_Gateway => \Custom_Gateway Stripe => \Omnipay\Stripe\Gateway PayPal\Express => \Omnipay\PayPal\ExpressGateway PayPal_Express => \Omnipay\PayPal\ExpressGateway Parameters `$shortName` The short gateway name Returns string The fully namespaced gateway class name
`public static float`	# `toFloat( $value )` Convert an amount into a float. The float datatype can then be converted into the string format that the remote gateway requies. Convert an amount into a float. The float datatype can then be converted into the string format that the remote gateway requies. Returns float The amount converted to a float. Throws `InvalidArgumentException` on a validation failure. Var string\|int\|float $value The value to convert.