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oci_fetch

(PHP 5, PHP 7, PHP 8, PECL OCI8 >= 1.1.0)

oci_fetch从查询中读取下一行到内部缓冲区

说明

oci_fetch(resource $statement): bool

从查询中读取下一行到内部缓冲区,可以使用 oci_result() 访问,也可以使用之前用 oci_define_by_name() 定义的变量访问。

有关读取数据的通用信息,请参阅 oci_fetch_array()

参数

statement

有效的 OCI8 报表标识符 由 oci_parse() 创建,被 oci_execute()REF CURSOR statement 标识执行。

返回值

成功时返回 true,如果 statement 中没有更多行,则为 false

示例

示例 #1 oci_fetch() 与已定义的变量

<?php

$conn
= oci_connect('hr', 'welcome', 'localhost/XE');
if (!
$conn) {
$e = oci_error();
trigger_error(htmlentities($e['message'], ENT_QUOTES), E_USER_ERROR);
}

$sql = 'SELECT location_id, city FROM locations WHERE location_id < 1200';
$stid = oci_parse($conn, $sql);

// The defines MUST be done before executing
oci_define_by_name($stid, 'LOCATION_ID', $locid);
oci_define_by_name($stid, 'CITY', $city);

oci_execute($stid);

// Each fetch populates the previously defined variables with the next row's data
while (oci_fetch($stid)) {
echo
"Location id $locid is $city<br>\n";
}

// Displays:
// Location id 1000 is Roma
// Location id 1100 is Venice

oci_free_statement($stid);
oci_close($conn);

?>

示例 #2 oci_fetch()oci_result()

<?php

$conn
= oci_connect('hr', 'welcome', 'localhost/XE');
if (!
$conn) {
$e = oci_error();
trigger_error(htmlentities($e['message'], ENT_QUOTES), E_USER_ERROR);
}

$sql = 'SELECT location_id, city FROM locations WHERE location_id < 1200';
$stid = oci_parse($conn, $sql);
oci_execute($stid);

while (
oci_fetch($stid)) {
echo
oci_result($stid, 'LOCATION_ID') . " is ";
echo
oci_result($stid, 'CITY') . "<br>\n";
}

// Displays:
// 1000 is Roma
// 1100 is Venice

oci_free_statement($stid);
oci_close($conn);

?>

注释

注意:

不会从 Oracle 数据库隐式结果集中返回行。请改用 oci_fetch_array()

参见

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