REF

AbCdEf


bCdEf
bCd
AbCd
AbCdEf
f

A
d
f

ABCDEF
abcdef

AbCdEfPQR
AbCdEfPQR (mutate)

A
A
65
41

123 (num)
123 (str)

abc[cr][lf][0x02]def

PHP

local $str;
$str = 'AbCdEf';

substr($str, 1)
substr($str, 1, 3)
substr($str, 0, 4)
substr($str, 0, 8)
substr($str, -1, 1)

$str{0}
$str{3}
$str{strlen($str)-1}

strtoupper($str)
strtolower($str)

$str.'PQR';
$str .= 'PQR';

chr(65)
chr(0x41)
ord('A')


'123' (automatic)
123   (automatic)

"abc\r\n\x02def"

trim / ltrim / rtrim

sprintf

str_replace

strcmp

strstr 

strpos / strrpos

strrchr

Visual Basic 6

Dim str As String
str= "AbCdEf"

Mid(str, 2)
Mid(str, 2, 3)
Left(str, 4)
Left(str, 8)
Right(str, 1)

Mid(str,1,1)
Mid(str,4,1)
Mid(str,Len(str),1)

UCase(str)
LCase(str)

str & "PQR"
str = str & "PQR"

Chr(65)
Chr(&H41)
Asc("A")


Val("123")
123

AMX

CHAR str[10]
str = 'AbCdEf'

?
?
LEFT_STRING(str,4)
LEFT_STRING(str,8)
RIGHT_STRING(str,1)

str[1]
str[4]
str[LENGTH_STRING(str)]

UPPER_STRING(str)
LOWER_STRING(str)

"str,'PQR'"
str = "str,'PQR'"

"65"
"$41"
'A'
ITOHEX('A')

ATOI('123')

Crestron

STRING str[10];
str = "AbCdEf";

RIGHT(str, LEN(str)-1)
MID(str, 2, 3)
LEFT(str, 4)
LEFT(str, 8)
RIGHT(str, 1)

MID(str,1,1) / CHR(BYTE(str,1))
MID(str,4,1) / CHR(BYTE(str,4))
MID(str,LEN(str),1) / CHR(BYTE(str,LEN(str)))

UPPER(str)
LOWER(str)

str + "PQR"
str = str + "PQR"

Chr(65)
Chr(0x41)
BYTE("A",1)
?

ITOA("123")
ATOI(123)