在PHP中,between和not between是用于比较一个值是否在指定范围内的条件语句。
- between:用于判断一个值是否在指定范围内,包括指定的最小值和最大值。如果值在指定范围内,条件语句返回true;否则返回false。
例如:
$value = https://www.yisu.com/ask/5;"Value is between 1 and 10"; } else { echo "Value is not between 1 and 10"; }
- not between:与between相反,用于判断一个值是否不在指定范围内。如果值不在指定范围内,条件语句返回true;否则返回false。
例如:
$value = https://www.yisu.com/ask/15;"Value is not between 1 and 10"; } else { echo "Value is between 1 and 10"; }
总结:between用于判断一个值是否在指定范围内,而not between用于判断一个值是否不在指定范围内。