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PHP Classes Notable PHP package Random Access File

From: PHP Classes Notable <list-notable@phpclasses.net>, sent: 13:42:54 - 30.12.2016

Notable PHP package: Random Access File - PHP Classes
Database management systems use special techniques to find records of data very quickly. One of those techniques is to make each record of data in table have a fixed length, even when some record fields have a variable length. This way, to read or write specific records in a table, it is just a matter of knowing the record position and multiplying by the length of each record. This class takes advantage of this technique to efficiently perform several types of operations to manipulate records of data in table files. Those operations include not only reading and writing records, but also moving records to different positions or even truncate the table files to make them smaller.

Notable PHP package: Random Access File

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Package

Random Access File

Store data fixed record length data in files

Moderator comment

Database management systems use special techniques to find records of data very quickly.

One of those techniques is to make each record of data in table have a fixed length, even when some record fields have a variable length.

This way, to read or write specific records in a table, it is just a matter of knowing the record position and multiplying by the length of each record.

This class takes advantage of this technique to efficiently perform several types of operations to manipulate records of data in table files.

Those operations include not only reading and writing records, but also moving records to different positions or even truncate the table files to make them smaller.

Author

Christian Vigh

Groups

PHP 5, Databases, Files and Folders

Description

This class can store data fixed record length data in files.

It can open files for reading or writing and store records of data of fixed length in them, like those used by database file managers.

The class can also perform other operations such as copy one set of records to another position in the same file, swap or truncate records.

The class implements array and iterator interfaces, so its objects can be accessed as if they were arrays.
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