sqlsrv_field_metadata

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sqlsrv_field_metadata — Retrieves metadata for the fields of a statement prepared by sqlsrv_prepare() or sqlsrv_query()

说明

sqlsrv_field_metadata(resource $stmt): mixed

Retrieves metadata for the fields of a statement prepared by sqlsrv_prepare() or sqlsrv_query(). sqlsrv_field_metadata() can be called on a statement before or after statement execution.

参数

stmt: The statement resource for which metadata is returned.

返回值

Returns an array of arrays on success. Otherwise, false is returned. Each returned array is described by the following table:

**Array returned by sqlsrv_field_metadata**
Key	Description
Name	The name of the field.
Type	The numeric value for the SQL type.
Size	The number of characters for fields of character type, the number of bytes for fields of binary type, or `null` for other types.
Precision	The precision for types of variable precision, `null` for other types.
Scale	The scale for types of variable scale, `null` for other types.
Nullable	An enumeration indicating whether the column is nullable, not nullable, or if it is not known.

For more information, see » sqlsrv_field_metadata in the Microsoft SQLSRV documentation.

范例

示例 #1 sqlsrv_field_metadata() example


<?php
$serverName = "serverName\sqlexpress";
$connectionInfo = array( "Database"=>"AdventureWorks", "UID"=>"username", "PWD"=>"password");
$conn = sqlsrv_connect( $serverName, $connectionInfo);
if( $conn === false ) {
   die( print_r( sqlsrv_errors(), true));
}

$sql = "SELECT * FROM Table_1";
$stmt = sqlsrv_prepare( $conn, $sql );

foreach( sqlsrv_field_metadata( $stmt ) as $fieldMetadata ) {
    foreach( $fieldMetadata as $name => $value) {
       echo "$name: $value<br />";
    }
      echo "<br />";
}
?>

参见

sqlsrv_client_info() - Returns information about the client and specified connection

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官方地址：https://www.php.net/manual/en/function.sqlsrv-field-metadata.php

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sqlsrv_field_metadata

说明

参数

返回值

范例

参见

User Contributed Notes