PHP mysqli_fetch_field() 函数 PHP MySQLi 参考手册 返回结果集中下一字段(列),然后输出每个字段名称、表格和最大长度: 定义和用法 mysqli_fetch_field() 函数从结果集中取得下一字段(列),并作为对象返回。 语法 mysqli_fetch_field(result); 参数
PHP mysqli_fetch_field_direct() 函数 PHP MySQLi 参考手册 返回结果集中某个单一字段(列)的 meta-data,并输出字段名称、表格和最大长度: 定义和用法 mysqli_fetch_field_direct() 函数从结果集中取得某个单一字段(列)的 meta-data,并作为对象返回。 语法 m
MYSQL_FIELD * mysql_fetch_field(MYSQL_RES * result); result- a result set identifier returned bymysql_store_result()ormysql_use_result(). Description Returns the definition of one column of a result set as a pointer to a MYSQL_FIELD structure. Call this function repeatedly to retrieve infor...
*field;while((field=mysql_fetch_field(result))){printf("field name %s\n",field->name);}
注意: 此函数返回的字段名大小写敏感。 注意: If field or tablenames are aliased in the SQL query the aliased name will be returned. The original name can be retrieved for instance by using mysqli_result::fetch_field(). 参见 ¶ mysql_field_seek() - 将结果指针设置为指定的字段偏移量 发...
这里的fieldnr是一个整数，它代表字段在结果集中从0开始的索引，其范围应该在0到mysql_num_fields(result)减1之间，其中mysql_num_fields(result)表示结果集中列的数量。通过调用mysql_fetch_field_direct，你可以针对任意列获取其字段类型、名称、长度、是否可为空等属性信息。这个函数执行时，如果指定的...
MYSQL_FIELD * mysql_fetch_field_direct(MYSQL_RES * res, unsigned int fieldnr); res - a result set identifier returned by mysql_store_result() or mysql_use_result(). fieldnr - the field number. This value must be within the range from 0 to number of fields - 1 Description Return...
mysqli_fetch_field -> length & character set Bob Anonymous October 26, 2012 01:02PM Re: mysqli_fetch_field -> length & character set Rick James October 28, 2012 10:21AM Sorry, you can't reply to this topic. It has been closed. ...
Errors None. Example unsignedintnum_fields;unsignedinti;MYSQL_FIELD*field;num_fields=mysql_num_fields(result);for(i=0;i<num_fields;i++){field=mysql_fetch_field_direct(result,i);printf("Field %u is %s\n",i,field->name);}
[15:45:07.676] at com.caucho.quercus.lib.QuercusMysqlModule.mysql_fetch_field(QuercusMysqlModule.java:362) [15:45:07.676] at _quercus._wp_22dincludes._wp_22ddb__php$quercus_wpdb.fun_query(_wp_22ddb__php.java:572) [15:45:07.676] at _quercus._wp_22dincludes._wp_22ddb__php$quercus...