(PECL luasandbox >= 1.0.0)
LuaSandboxFunction::call — Call a Lua function
Calls a Lua function.
Errors considered to be the fault of the PHP code will result in the
function returning false
and E_WARNING
being raised, for example, a resource type being used as an
argument. Lua errors will result in a LuaSandboxRuntimeError
exception being thrown.
PHP and Lua types are converted as follows:
PHP null
is Lua nil
, and vice versa.
PHP ints and floats are converted to Lua
numbers. Infinity and NAN
are supported.
Lua numbers without a fractional part between approximately -2**53
and 2**53
are converted to PHP ints, with others
being converted to PHP floats.
PHP bools are Lua booleans, and vice versa.
PHP strings are Lua strings, and vice versa.
Lua functions are PHP LuaSandboxFunction objects, and vice versa. General PHP callables are not supported.
PHP arrays are converted to Lua tables, and vice versa.
Note that Lua typically indexes arrays from 1, while PHP indexes arrays from 0. No adjustment is made for these differing conventions.
Self-referential arrays are not supported in either direction.
PHP references are dereferenced.
Lua __pairs
and __ipairs
are processed.
__index
is ignored.
When converting from PHP to Lua, integer keys between
-2**53
and 2**53
are represented
as Lua numbers. All other keys are represented as Lua strings.
When converting from Lua to PHP, keys other than strings and
numbers will result in an error, as will collisions when converting
numbers to strings or vice versa (since PHP considers things like
$a[0]
and $a["0"]
as being equivalent).
All other types are unsupported and will raise an error/exception, including general PHP objects and Lua userdata and thread types.
Lua functions inherently return a list of results. So on success, this method returns an array containing all of the values returned by Lua, with int keys starting from zero. Lua may return no results, in which case an empty array is returned.
args
Arguments passed to the function.