How to use php ternary operator

1. Ternary operator format: (expr1) ? (expr2) : (expr3)

2. Logical operation

Note: Remember to add parentheses for addition and subtraction operations, otherwise the system may not recognize them sometimes.

Example:

"; if ($a > 10 && $b > 10) { echo "a和b都大于10" . "
"; } else { echo "a和b都小于10" . "
"; } //三目运算符： $c = 60; //如果$c与50相等，则$v的值为字符串：真值；否则，$v的值为字符串：假值。 $v = ($c == 50) ? "真值" : "假值"; echo $v; ?>

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