loops and branches
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This document discusses conditional code in PHP using if statements. It explains the syntax of if statements using parentheses, brackets, and braces. It also covers different comparison operators like ==, ===, !=, >, <, >=, and <= that are used to evaluate conditions. Finally, it discusses logical operators like && and || that are used to combine multiple conditions.
![TERMINOLOGY
parentheses
brackets
braces
( )
{ }
[ ]](https://image.slidesharecdn.com/conditional-code-141221134155-conversion-gate01/85/loops-and-branches-3-320.jpg)
loops and branches
- 2. CONDITIONAL CODE If( ) { } condition // your additional code goes here // . . .
- 4. CONDITIONAL CODE If( ) { } condition echo “it’s true!”; // . . . $a < 50$b > 20 true or false? $c == 99$c === 99$d != 100 Code block
- 5. EQUALITY If( $a == $b ){ // execute this code }
- 6. ASSIGNMENT INSTEAD OF EQUALITY $a = 5; $b = 10; If( $a = $b ){ // always true! }
- 7. OPERATOR WITH = = assignment == equality === strict equality
- 8. COMPARISON If( $a == $b ){ … If( $a != $b ){ … If( $a === $b ){ … If( $a !== $b ){ … If( $a > $b ){ … If( $a < $b ){ … If( $a >= $b ){ … If( $a <= $b ){ …
- 9. && LOGICAL AND / OR If( $a === $b $c === $d){… If( $a === $b $c === $d){… If( ($a > $b) && ($c > $d) ){… and or||