1--TEST-- 2FFI 039: Pointer arithmetic 3--EXTENSIONS-- 4ffi 5--INI-- 6ffi.enable=1 7--FILE-- 8<?php 9$a = FFI::cdef()->new("int[10]"); 10for ($i = 0; $i < 10; $i++) { 11 $a[$i] = $i; 12} 13$p = $a + 0; 14var_dump($p[0]); 15$p += 7; 16var_dump($p[0]); 17$q = $p - 3; 18var_dump($q[0]); 19$q = 1 + $q; 20$p++; 21var_dump($p, $q); 22var_dump($p - $q); 23var_dump($q - $p); 24var_dump($q - $a); 25?> 26--EXPECTF-- 27int(0) 28int(7) 29int(4) 30object(FFI\CData:int32_t*)#%d (1) { 31 [0]=> 32 int(8) 33} 34object(FFI\CData:int32_t*)#%d (1) { 35 [0]=> 36 int(5) 37} 38int(3) 39int(-3) 40int(5) 41