1--TEST-- 2Test ++N operator : various numbers as strings 3--FILE-- 4<?php 5 6$strVals = array( 7 "0","65","-44", "1.2", "-7.7", "abc", "123abc", "123e5", "123e5xyz", " 123abc", "123 abc", "123abc ", "3.4a", 8 "a5.9" 9); 10 11 12foreach ($strVals as $strVal) { 13 echo "--- testing: '$strVal' ---\n"; 14 var_dump(++$strVal); 15} 16 17?> 18===DONE=== 19--EXPECT-- 20--- testing: '0' --- 21int(1) 22--- testing: '65' --- 23int(66) 24--- testing: '-44' --- 25int(-43) 26--- testing: '1.2' --- 27float(2.2) 28--- testing: '-7.7' --- 29float(-6.7) 30--- testing: 'abc' --- 31string(3) "abd" 32--- testing: '123abc' --- 33string(6) "123abd" 34--- testing: '123e5' --- 35float(12300001) 36--- testing: '123e5xyz' --- 37string(8) "123e5xza" 38--- testing: ' 123abc' --- 39string(7) " 123abd" 40--- testing: '123 abc' --- 41string(7) "123 abd" 42--- testing: '123abc ' --- 43string(7) "123abc " 44--- testing: '3.4a' --- 45string(4) "3.4b" 46--- testing: 'a5.9' --- 47string(4) "a5.0" 48===DONE=== 49