(PHP 4 >= 4.3.0, PHP 5)
pg_select — 选择记录
$connection
, string $table_name
, array $assoc_array
[, int $options
] )pg_select() 根据 assoc_array 数组中的 field=>value 值来选择记录。成功的查询返回和 assoc_array 指定的条件相匹配的包括记录和字段的数组。如果指定了 options， pg_convert() 会按照指定选项作用于 assoc_array 之上。
Example #1 pg_select
<?php
$db = pg_connect ('dbname=foo');
// This is safe, since $_POST is converted automatically
$rec = pg_select($db, 'post_log', $_POST);
if ($rec) {
echo "Records selected\n";
var_dump($rec);
}
else {
echo "User must have sent wrong inputs\n";
}
?>
此函数是实验性的。 此函数的表象，包括名称及其相关文档都可能在未来的 PHP 发布版本中未通知就被修改。使用本扩展风险自担 。
参见 pg_convert()。
connection
PostgreSQL database connection resource.
table_name
Name of the table from which to select rows.
assoc_array
An array whose keys are field names in the table table_name,
and whose values are the conditions that a row must meet to be retrieved.
options
Any number of PGSQL_CONV_FORCE_NULL,
PGSQL_DML_NO_CONV,
PGSQL_DML_EXEC,
PGSQL_DML_ASYNC or
PGSQL_DML_STRING combined. If PGSQL_DML_STRING is part of the
options then query string is returned.
成功时返回 TRUE， 或者在失败时返回 FALSE. Returns string if PGSQL_DML_STRING is passed
via options.
Example #2 pg_select() example
<?php
$db = pg_connect('dbname=foo');
// This is safe, since $_POST is converted automatically
$rec = pg_select($db, 'post_log', $_POST);
if ($rec) {
echo "Records selected\n";
var_dump($rec);
} else {
echo "User must have sent wrong inputs\n";
}
?>