String Operations:
Concatenation Operator: .
String variables individual characters can be accessed through { }
Index of characters in string starts with zero
String Functions:
strlen()
strcmp()
strpos()
substr()
chop()
trim()
ltrim()
strtolower()
strtoupper()
Type Conversion:
In PHP Explicit type conversion can be performed in three different ways:
- Type Casting for example $sum = 10.78; (int)$sum will be 10
- Type conversion functions: intval, doubleval, strval ex: intval($sum)
- settype function: takes two parameters: variable and string specifying type name. Ex: settype($sum,”integer”);