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ColumnResult::isNumberSigned — Check if signed type
Retrieves a table's column information and is instantiated by the mysql_xdevapi\RowResult::getColumns() method.
本函数还未编写文档，仅有参数列表。
此函数没有参数。
true if a given column as a signed type.
示例 #1 mysql_xdevapi\ColumnResult::isNumberSigned() example
<?php
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?>