Documentation for Ice 3.5. The latest release is Ice 3.7. Refer to the space directory for other releases.

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Mapping of Slice Built-In Types to PHP Types

PHP has a limited set of primitive types: boolean, integer, double, and string. The Slice built-in types are mapped to PHP types as shown in the table below:

Slice

Ruby

bool

true or false

byte

integer

short

integer

int

integer

long

integer

float

double

double

double

string

string

PHP's integer type may not accommodate the range of values supported by Slice's long type, therefore long values that are outside this range are mapped as strings. Scripts must be prepared to receive an integer or string from any operation that returns a long value.

String Mapping in PHP

String values returned as the result of a Slice operation (including return values, out parameters, and data members) contain UTF-8 encoded strings unless the program has installed a string converter, in which case string values use the converter's native encoding instead.

As string input values for a remote Slice operation, Ice accepts null in addition to string objects; each occurrence of null is marshaled as an empty string. Ice assumes that all string objects contain valid UTF-8 encoded strings unless the program has installed a string converter, in which case Ice assumes that string objects use the native encoding expected by the converter.

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