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String • Single-quoted string literals • Embedded variables are NOT interpolated (Ex) „The sum is: $sum‟ = The sum is: $sum • Embedded escape sequences are NOT recognized • Double-quoted string literals • Embedded variables ARE interpolated (Ex) “The sum is: $sum” = The sum is: 12.4 • If <strong>the</strong>re is a variable name in a double-quoted string but you don‟t want it interpolated, it must be backslashed • Embedded escape sequences ARE recognized • For both single- and double-quoted literal strings, embedded delimiters must be backslashed 16
Special character Special char. \n \r \t \\ \$ \” Semantics new line Return carriage Tab Backslash Dollar Quotation mark 17
Page 1 and 2: Lecture 6. PHP: Part 1 1
Page 3 and 4: Overview of PHP • PHP is a server
Page 5 and 6: Operation Overview Web browser Clie
Page 7 and 8: General Syntactic Characteristics
Page 9 and 10: General Syntactic Characteristics
Page 11 and 12: PHP TYPES • Four scalar types •
Page 13 and 14: Variables • If you prefer to be i
Page 15: Example • Integer $var = 1234; $v
Page 19 and 20: Arithmetic Operators and Expression
Page 21 and 22: String Operations and Functions •
Page 23 and 24: Example $str = “Apples are good
Page 25 and 26: Scalar Type Conversions • Explici
Page 27 and 28: Output • echo function • If par
Page 29 and 30: Example today.php Welcom
Page 31 and 32: Control Statements • Selection st
Page 33 and 34: Example if ($day ==== “Saturday
Page 35 and 36: HTML/PHP document • HTML can be i
Page 38 and 39: Result Powers table Number Square R
Page 40: PHP in HTML • Using variable

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