Php/docs/mongodb-bson-decimal128.construct
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MongoDB\BSON\Decimal128::__construct
(mongodb >=1.2.0)
MongoDB\BSON\Decimal128::__construct — Construct a new Decimal128
说明
final public MongoDB\BSON\Decimal128::__construct
([ string $value
] )
Note:
MongoDB\BSON\Decimal128 is only compatible with MongoDB 3.4+. Attempting to use the BSON type with an earlier version of MongoDB will result in an error.
参数
value(string)- A decimal string.
错误／异常
- Throws MongoDB\Driver\Exception\InvalidArgumentException on argument parsing errors.
- Throws MongoDB\Driver\Exception\InvalidArgumentException if
valueis not a valid decimal string.
范例
Example #1 MongoDB\BSON\Decimal128::__construct() example
<?phpvar_dump(new MongoDB\BSON\Decimal128(1234.5678));var_dump(new MongoDB\BSON\Decimal128(NAN));var_dump(new MongoDB\BSON\Decimal128(INF));?>
以上例程的输出类似于：
object(MongoDB\BSON\Decimal128)#1 (1) {
["dec"]=>
string(9) "1234.5678"
}
object(MongoDB\BSON\Decimal128)#1 (1) {
["dec"]=>
string(3) "NaN"
}
object(MongoDB\BSON\Decimal128)#1 (1) {
["dec"]=>
string(8) "Infinity"
}
