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PHP:pg_send_query_params()的用法_PostgreSQL函数
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(PHP 5 >= 5.1.0)
pg_send_query_params — Submits a command and separate parameters to the server without waiting for the result(s).
说明 bool pg_send_query_params ( resource $connection , string $query , array $params )Submits a command and separate parameters to the server without waiting for the result(s).
This is equivalent to pg_send_query() except that query parameters can be specified separately from the query string. The function&#;s parameters are handled identically to pg_query_params(). Like pg_query_params(), it will not work on pre-7.4 PostgreSQL connections, and it allows only one command in the query string.
参数connection
PostgreSQL database connection resource.
query
The parameterized SQL statement. Must contain only a single statement. (multiple statements separated by semi-colons are not allowed.) If any parameters are used, they are referred to as $1, $2, etc.
paramsAn array of parameter values to substitute for the $1, $2, etc. placeholders in the original prepared query string. The number of elements in the array must match the number of placeholders.
返回值成功时返回 TRUE， 或者在失败时返回 FALSE。
Use pg_get_result() to determine the query result.
范例
Example #1 Using pg_send_query_params()
<?php$dbconn=pg_connect("dbname=publisher")ordie("Couldnotconnect");//Usingparameters.Notethatitisnotnecessarytoquoteorescape//theparameter.pg_send_query_params($dbconn,'selectcount(*)fromauthorswherecity=$1',array('Perth'));//Compareagainstbasicpg_send_queryusage$str=pg_escape_string('Perth');pg_send_query($dbconn,"selectcount(*)fromauthorswherecity='${str}'");?> 参见pg_send_query() - 发送异步查询
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