Class SignalHandler

Assist on the management of signals send at a global scope thru the whole system.

Namespace: Peg\Lib\Signals
Located at src/Signals/SignalHandler.php

Methods summary
`public static`	# `Send( string $signal_type, Peg\Lib\Signals\SignalData & $signal_data = null )` Calls all callbacks listening for a given signal type. The $var1-$var6 are optional parameters passed to the callback. Calls all callbacks listening for a given signal type. The $var1-$var6 are optional parameters passed to the callback. Parameters `$signal_type` `string` $signal_type `$signal_data` `Peg\Lib\Signals\SignalData` $signal_data
`public static`	# `Listen( string $signal_type, function $callback, integer $priority = 10 )` Add a callback that listens to a specific signal. Add a callback that listens to a specific signal. Parameters `$signal_type` `string` $signal_type `$callback` `function` $callback `$priority` `integer` $priority
`public static`	# `Unlisten( string $signal_type, function $callback )` Remove a callback from listening a given signal type. Remove a callback from listening a given signal type. Parameters `$signal_type` `string` $signal_type `$callback` `function` $callback
`public static array`	# `Sort( array $data_array, string $field_name, mixed $sort_method = SORT_ASC )` Sorts an array of listener function using bubble sort. Sorts an array of listener function using bubble sort. Parameters `$data_array` `array` $data_array The array to sort in the format returned by data_parser(). `$field_name` `string` $field_name The field we are using to sort the array by. `$sort_method` `mixed` $sort_method The type of sorting, default is ascending. Returns `array` The same array but sorted by the given field name.