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# LXII. mSQL functions

# Introduction

These functions allow you to access mSQL database servers. More information about mSQL can be found at http://www.hughes.com.au/.

# Requirements

# Installation

In order to have these functions available, you must compile PHP with msql support by using the `--with-msql[=dir]` option. The default location is /usr/local/Hughes.

# Runtime Configuration

The behaviour of these functions is affected by settings in `php.ini`.

Table 1. mSQL configuration options

Name | Default | Changeable
--- | --- | ---
msql.allow_persistent | "On" | PHP_INI_SYSTEM
msql.max_persistent | "-1" | PHP_INI_SYSTEM
msql.max_links | "-1" | PHP_INI_SYSTEM

For further details and definition of the PHP_INI_* constants see ini_set().

Here is a short explanation of the configuration directives.

`msql.allow_persistent` boolean

  Whether to allow persistent mSQL connections.

`msql.max_persistent` integer

  The maximum number of persistent mSQL connections per process.

`msql.max_links` integer

  The maximum number of mSQL connections per process, including persistent connections.

# Resource Types

# Predefined Constants

The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.

`MSQL_ASSOC` (integer)

`MSQL_NUM` (integer)

`MSQL_BOTH` (integer)

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