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maxdb_stmt_bind_param (PECL) maxdb_stmt_bind_param (no version information, might be only in CVS) stmt->bind_param -- Binds variables to a prepared statement as parameters DescriptionProcedural style: bool maxdb_stmt_bind_param ( resource stmt, string types, mixed &var1 [, mixed &...] ) Object oriented style (method): class stmt { bool bind_param ( array types, mixed &var1 [, mixed &...] ) }
maxdb_stmt_bind_param() is used to bind variables for the
parameter markers in the SQL statement that was passed to
maxdb_prepare().
The string types contains one or more characters which specify
the types for the corresponding bind variables.
Variables for SELECT INTO SQL statements can also be bound using maxdb_stmt_bind_param().
Parameters for database procedures can be bound using maxdb_stmt_bind_param(). See the
examples how to use maxdb_stmt_bind_param() in this cases.
If a variable bound as INTO variable to a SQL statement was used before, the content of this variable
is overwritten by the data of the SELECT INTO statement. A reference to this variable will be invalid after a call to
maxdb_stmt_bind_param().
For INOUT parameters of database procedures the content of the bound INOUT variable is overwritten by the output
value of the database procedure. A reference to this variable will be invalid after a call to
maxdb_stmt_bind_param().
表格 1. Type specification chars | Character | Description |
|---|
| i | corresponding variable has type integer | | d | corresponding variable has type double | | s | corresponding variable has type string | | b | corresponding variable is a blob and will be send in packages |
Return values
如果成功则返回 TRUE，失败则返回 FALSE。
Example例子 1. Object oriented style |
<?php
$maxdb = new maxdb('localhost', 'MONA', 'RED', 'DEMODB');
if (maxdb_connect_errno()) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
$maxdb->query ("CREATE TABLE temp.mycity LIKE hotel.city");
$maxdb->query ("INSERT INTO temp.mycity SELECT * FROM hotel.city");
$stmt = $maxdb->prepare("INSERT INTO temp.mycity VALUES (?, ?, ?)");
$stmt->bind_param('sss', $zip, $name, $state);
$zip = '11111';
$name = 'Georgetown';
$state = 'NY';
$stmt->execute();
printf("%d Row inserted.\n", $stmt->affected_rows);
$stmt->close();
$maxdb->query("DELETE FROM temp.mycity WHERE name='Georgetown'");
printf("%d Row deleted.\n", $maxdb->affected_rows);
$maxdb->close();
?>
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例子 2. Procedural style |
<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");
if (!$link) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
maxdb_query ($link, "CREATE TABLE temp.mycity LIKE hotel.city");
maxdb_query ($link, "INSERT INTO temp.mycity SELECT * FROM hotel.city");
$stmt = maxdb_prepare($link, "INSERT INTO temp.mycity VALUES (?, ?, ?)");
maxdb_stmt_bind_param($stmt, 'sss', $zip, $name, $state);
$zip = '11111';
$name = 'Georgetown';
$state = 'NY';
maxdb_stmt_execute($stmt);
printf("%d Row inserted.\n", maxdb_stmt_affected_rows($stmt));
maxdb_stmt_close($stmt);
maxdb_query($link, "DELETE FROM temp.mycity WHERE name='Georgetown'");
printf("%d Row deleted.\n", maxdb_affected_rows($link));
maxdb_close($link);
?>
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The above examples would produce the following output:
1 Row inserted.
1 Row deleted. |
例子 3. Procedural style (SELECT INTO) |
<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");
if (!$link) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
$stmt = maxdb_prepare ($link, "SELECT price INTO ? FROM hotel.room where hno = ? and type = ?");
if (!$stmt) {
printf ("Prepare failed: %s\n", maxdb_error($link));
}
$hno = "50";
$rtype = "suite";
maxdb_stmt_bind_param($stmt, 'dss', $price, $hno, $rtype);
maxdb_stmt_execute($stmt);
printf ("%f\n", $price);
maxdb_stmt_close ($stmt);
?>
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The above examples would produce the following output:
例子 4. Procedural style (DB procedure) |
<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");
if (!$link) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
maxdb_report (MAXDB_REPORT_OFF);
maxdb_query($link,"DROP DBPROC test_proc");
maxdb_report (MAXDB_REPORT_ERROR);
$query = "create dbproc test_proc (INOUT e_text char(72)) AS select * from SYSDBA.DUAL; fetch into :e_text;";
maxdb_query($link, $query);
$stmt = maxdb_prepare ($link, "CALL test_proc (?)");
if (!$stmt) {
printf ("Prepare failed: %s\n", maxdb_error($link));
}
maxdb_stmt_bind_param($stmt, 's', $result);
maxdb_stmt_execute($stmt);
printf ("%s\n", $result);
maxdb_stmt_close ($stmt);
?>
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The above examples would produce the following output:
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maxdb_stmt_affected_rows