str_offset_004.phpt   [plain text]

--TEST--
string offset 004
--FILE--
<?php
// Test assignments using (positive and negative) string offsets

$str = "abcdefghijklmno";
$i = 3;
$j = -4;

$str{2} = 'C';
var_dump($str);

$str{$i} = 'Z';
var_dump($str);

$str{-5} = 'P';
var_dump($str);

$str{$j} = 'Q';
var_dump($str);

$str{-20} = 'Y';
var_dump($str);

$str{-strlen($str)} = strtoupper($str{0}); /* An exotic ucfirst() ;) */
var_dump($str);

$str{20} = 'N';
var_dump($str);

$str{-2} = 'UFO';
var_dump($str);

$str{-$i} = $str{$j*2};
var_dump($str);
?>
--EXPECTF--
string(15) "abCdefghijklmno"
string(15) "abCZefghijklmno"
string(15) "abCZefghijPlmno"
string(15) "abCZefghijPQmno"

Warning: Illegal string offset:  -20 in %sstr_offset_004.php on line %d
string(15) "abCZefghijPQmno"
string(15) "AbCZefghijPQmno"
string(21) "AbCZefghijPQmno     N"
string(21) "AbCZefghijPQmno    UN"
string(21) "AbCZefghijPQmno   nUN"