(PECL ingres >= 1.2.0)
ingres_set_environment — Set environment features controlling output options
$link
, array $options
)ingres_set_environment() is called to set environmental options that affect the output of certain values from Ingres, such as the timezone, date format, decimal character separator, and float precision.
link
The connection link identifier
options
An enumerated array of option name/value pairs. The following table lists the option name and the expected type
| Option name | Option type | Description | Example |
|---|---|---|---|
| date_century_boundary | integer | The threshold by which a 2-digit year is determined to be in the current century or in the next century. Equivalent to II_DATE_CENTURY_BOUNDARY | 50 |
| timezone | string | Controls the timezone of the session. If not set, it will default the value defined by II_TIMEZONE_NAME. If II_TIMEZONE_NAME is not defined, NA-PACIFIC (GMT-8 with Daylight Savings) is used. | UNITED-KINGDOM |
| date_format | integer | Sets the allowable input and output format for Ingres dates. Defaults to the value defined by II_DATE_FORMAT. If II_DATE_FORMAT is not set, the default date format is US, for example mm/dd/yy. Valid values for date_format are:
|
INGRES_DATE_ISO4 |
| decimal_separator | string | The character identifier for decimal data | "," |
| money_lort | integer | Leading or trailing currency sign. Valid values for money_lort are:
|
INGRES_MONEY_LEADING |
| money_sign | string | The currency symbol to be used with the MONEY datatype | � |
| money_precision | integer | The precision of the MONEY datatype | 2 |
| float4_precision | integer | Precision of the FLOAT4 datatype | 10 |
| float8_precision | integer | Precision of the FLOAT8 data | 10 |
| blob_segment_length | integer | The amount of data in bytes to fetch at a time when retrieving BLOB or CLOB data. Defaults to 4096 bytes when not set explicitly | 8192 |
成功时返回 TRUE， 或者在失败时返回 FALSE.
Example #1 Set date_format to ISO4
<?php
$options = array( "date_format" => INGRES_DATE_ISO4 );
if (ingres_set_environment($link, $options))
{
$result=ingres_query($link,"select date('now') as date");
while ( $object = ingres_fetch_object ($result) ) {
echo $object->date."\n";
}
}
?>
Example #2 Set timezone to HONG-KONG
<?php
$options = array( "timezone" => "HONG-KONG");
if (ingres_set_environment($link, $options))
{
$result=ingres_query($link,"select date('now') as date");
while ( $object = ingres_fetch_object ($result) ) {
echo $object->date."\n";
}
}
?>