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primitive types • Integer type corresponds to the long type of C and its successors • Double type corresponds to the double type of C and its successors. Decimal point, an exponent, or both. • There is no character type • A single character data value is a string of length one • Strings • Characters are single bytes • String literals use single (′)or double quotes(″) 14
Example • Integer $var = 1234; $var = -1234; $var = 01234; $var = 0x1234; // Decimal // Decimal // Octal // Hexadecimal • Floating point $a = 1.234; // Float $a = 0.1234e1; // Exponential 15
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: Variables • If you prefer to be i
Page 17 and 18: Special character Special char. \n
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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