1--TEST-- 2double to string conversion tests (64bit) 3--SKIPIF-- 4<?php if (PHP_INT_SIZE != 8) die("skip this test is for 64bit platform only"); ?> 5--INI-- 6precision=14 7--FILE-- 8<?php 9 10$doubles = array( 11 29000000000000000000000000000000000000, 12 290000000000000000, 13 290000000000000, 14 29000000000000, 15 29000000000000.123123, 16 29000000000000.7123123, 17 29000.7123123, 18 239234242.7123123, 19 0.12345678901234567890, 20 10000000000000000000000000000000000000000000000, 21 1000000000000000000000000000000000, 22 100000000000000001, 23 1000006000000000011, 24 100000000000001, 25 10000000000, 26 999999999999999999, 27 9999999999999999999, 28 9999999999999999999999999999999999999, 29 (float)0 30 ); 31 32foreach ($doubles as $d) { 33 var_dump((string)$d); 34} 35 36echo "Done\n"; 37?> 38--EXPECTF-- 39string(7) "2.9E+37" 40string(18) "290000000000000000" 41string(15) "290000000000000" 42string(14) "29000000000000" 43string(14) "29000000000000" 44string(14) "29000000000001" 45string(13) "29000.7123123" 46string(15) "239234242.71231" 47string(16) "0.12345678901235" 48string(7) "1.0E+46" 49string(7) "1.0E+33" 50string(18) "100000000000000001" 51string(19) "1000006000000000011" 52string(15) "100000000000001" 53string(11) "10000000000" 54string(18) "999999999999999999" 55string(7) "1.0E+19" 56string(7) "1.0E+37" 57string(1) "0" 58Done 59