PHP Function List
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... mysql_unbuffered_query(), mysql_num_rows() will not return the correct value until all the rows in the result set have been retrieved. Note: For backward compatibility, the following deprecated alias may be used: mysql_numrows()
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返回一个包含字段信息的对象。 mysql_fetch_field() 可以用来从某个查询结果中取得字段的信息。如果没有指定字段偏移量,则下一个尚未被 mysql_fetch_field() 取得的字段被提取。
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Return Values Returns the number of affected rows on success, and -1 if the last query failed. If the last query was a DELETE query with no WHERE clause, all of the records will have been deleted from the table but this function will return zero ...
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参见 sqlite_changes() - Returns the number of rows that were changed by the most recent SQL statement sqlite_query() - Executes a query against a given database and returns a result handle sqlite_num_fields() - Returns the number of fields in a result set
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Function for creating unique md5 keys in a database. If there are duplets, then a new md5-key will be generated. For your use: function users_md5create($id){ global $mysql_link; while ($done==0) { $md5key = md5(time().($id/2).$loop).md5(time ...
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mysql_data_seek() moves the internal row pointer of the MySQL result associated with the specified result identifier to point to the specified row number. The next call to a MySQL fetch function, such as mysql_fetch_assoc(), would return that row.
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Retrieves the contents of one cell from a MySQL result set. When working on large result sets, you should consider using one of the functions that fetch an entire row (specified below). As these functions return the contents of multiple cells in one ...
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mysql_result() 返回 MySQL 结果集中一个单元的内容。字段参数可以是字段的偏移量或者字段名,或者是字段表点字段名(tablename.fieldname)。如果给列起了别名('select foo as bar from...'),则用 ...
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If you would like to just find out how many rows are returned by a query without actually using the results, then it's much more efficient to use SQL count function (specially for large tables with millions of rows).

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For a quick overview over all documented PHP functions, click here.
