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PHP:pg_fetch_all_columns()的用法_PostgreSQL函数
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(PHP 5 >= 5.1.0)
pg_fetch_all_columns — Fetches all rows in a particular result column as an array
说明 array pg_fetch_all_columns ( resource $result [, int $column = 0 ] )pg_fetch_all_columns() returns an array that contains all rows (records) in a particular column of the result resource.
Note: 此函数将 NULL 字段设置为 PHP NULL 值。
参数result 
PostgreSQL query result resource, returned by pg_query(), pg_query_params() or pg_execute() (among others).
columnColumn number, zero-based, to be retrieved from the result resource. Defaults to the first column if not specified.
返回值An array with all values in the result column.
FALSE is returned if column is larger than the number of columns in the result, or on any other error.
范例
Example #1 pg_fetch_all_columns() example
<?php$conn=pg_pconnect("dbname=publisher");if(!$conn){echo"Anerroroccurred.n";exit;}$result=pg_query($conn,"SELECTtitle,name,addressFROMauthors");if(!$result){echo"Anerroroccurred.n";exit;}//Getanarrayofallauthornames$arr=pg_fetch_all_columns($result,1);var_dump($arr);?> 参见pg_fetch_all() - 从结果中提取所有行作为一个数组
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