1--TEST-- 2string offset 004 3--FILE-- 4<?php 5// Test assignments using (positive and negative) string offsets 6 7$str = "abcdefghijklmno"; 8$i = 3; 9$j = -4; 10 11$str[2] = 'C'; 12var_dump($str); 13 14$str[$i] = 'Z'; 15var_dump($str); 16 17$str[-5] = 'P'; 18var_dump($str); 19 20$str[$j] = 'Q'; 21var_dump($str); 22 23$str[-20] = 'Y'; 24var_dump($str); 25 26$str[-strlen($str)] = strtoupper($str[0]); /* An exotic ucfirst() ;) */ 27var_dump($str); 28 29$str[20] = 'N'; 30var_dump($str); 31 32$str[-2] = 'UFO'; 33var_dump($str); 34 35$str[-$i] = $str[$j*2]; 36var_dump($str); 37?> 38--EXPECTF-- 39string(15) "abCdefghijklmno" 40string(15) "abCZefghijklmno" 41string(15) "abCZefghijPlmno" 42string(15) "abCZefghijPQmno" 43 44Warning: Illegal string offset: -20 in %sstr_offset_004.php on line %d 45string(15) "abCZefghijPQmno" 46string(15) "AbCZefghijPQmno" 47string(21) "AbCZefghijPQmno N" 48string(21) "AbCZefghijPQmno UN" 49string(21) "AbCZefghijPQmno nUN" 50
