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mysqli_stmt_execute()函数执行准备好的查询。
mysqli_stmt_execute()函数接受一个准备好的语句对象（使用prepare()函数创建）作为参数，并执行它，在执行时，任何存在的参数标记将自动替换为适当的数据。
在此函数之后，如果调用mysqli_stmt_affected_rows()函数（在UPDATE，DELETE，INSERT查询的情况下），则将获得受影响的行数。以同样的方式，如果调用mysqli_stmt_fetch()函数（在SELECT的情况下），将返回结果集。
mysqli_stmt_execute($stmt);
| 序号 | 参数及说明 |
|---|---|
| 1 | con(必需) This is the object representing the prepared statement. |
The PHP mysqli_stmt_execute() function returns a boolean value, true when successfultrue, fails tofalse.
This function was originally introduced in PHP version5introduced and can be used in all higher versions.
Assuming that we have already created a table named employee in the MySQL database, which contains the following content:
mysql> select * from employee; +------------+--------------+------+------+--------+ | FIRST_NAME | LAST_NAME | AGE | SEX | INCOME | +------------+--------------+------+------+--------+ | Vinay | Bhattacharya | 20 | M | 16000 | | Sharukh | Sheik | 25 | M | 18300 | | Trupthi | Mishra | 24 | F | 36000 | | Sheldon | Cooper | 25 | M | 12256 | | Sarmista | Sharma | 28 | F | 15000 | +------------+--------------+------+------+--------+ 5 rows in set (0.00 sec)
The following example demonstratesmysqli_stmt_execute()Usage of the function (procedural style), executing and preparing an update statement:
<?php
$con = mysqli_connect("localhost", "root", "password", "mydb");
$stmt = mysqli_prepare($con, "UPDATE employee set INCOME=INCOME-? where INCOME > ?");
mysqli_stmt_execute($stmt, "si", $reduct, $limit);
$limit = 16000;
$reduct = 5000;
//Exécuter l'instruction
mysqli_stmt_execute($stmt);
print("The record has been updated......\n");
//Fin de l'instruction
mysqli_stmt_execute($stmt);
//Fermer la connexion
mysqli_close($con);
?>Affichage des résultats
The record has been updated......
After executing the above program,employeeThe content of the table is as follows:
mysql> select * from employee; +------------+--------------+------+------+--------+ | FIRST_NAME | LAST_NAME | AGE | SEX | INCOME | +------------+--------------+------+------+--------+ | Vinay | Bhattacharya | 20 | M | 16000 | | Sharukh | Sheik | 25 | M | 13300 | | Trupthi | Mishra | 24 | F | 31000 | | Sheldon | Cooper | 25 | M | 12256 | | Sarmista | Sharma | 28 | F | 15000 | +------------+--------------+------+------+--------+ 5 rows in set (0.00 sec)
In object-oriented style, the syntax of this function is$stmt-> execute();。Here is an example of this function in object-oriented style, executing and preparing an insert statement
<?php
//Establishing a connection
$con = new mysqli("localhost", "root", "password", "mydb");
//Creating a table
$con -> query("CREATE TABLE myplayers(ID INT, First_Name VARCHAR(255), Last_Name VARCHAR(255), Place_Of_Birth VARCHAR(255), Country VARCHAR(255))");
print("Création de la table.....\n");
//Insérer des valeurs dans la table en utilisant les instructions préparées
$stmt = $con -> prepare( "INSERT INTO myplayers values(?, ?, ?, ?, ?)");
$stmt -> bind_param("issss", $id, $fname, $lname, $pob, $country);
$id = 1;
$fname = 'Shikhar';
$lname = 'Dhawan';
$pob = 'Delhi';
$country = 'India';
//Exécuter l'instruction
$stmt->execute();
//Fin de l'instruction
$stmt->close();
//Fermer la connexion
$con->close();
?>Affichage des résultats
Création de la table.....
Vous pouvez également exécuter des instructions créées parmysqli_stmt_prepare()Instructions créées par la fonction -
<?php
$con = mysqli_connect("localhost", "root", "password", "mydb");
$query = "CREATE TABLE Test(Name VARCHAR(255), AGE INT)";
mysqli_query($con, $query);
print("Création de la table.....\n");
//Initialisation de l'instruction
$stmt = mysqli_stmt_init($con);
mysqli_stmt_prepare($stmt, "INSERT INTO Test values(?, ?)");
mysqli_stmt_bind_param($stmt, "si", $Name, $Age);
$Name = 'Raju';
$Age = 25;
print("Insertion des enregistrements.....");
//Exécuter l'instruction
mysqli_stmt_execute($stmt);
//Fin de l'instruction
mysqli_stmt_close($stmt);
//Fermer la connexion
mysqli_close($con);
?>Affichage des résultats
Création de la table..... Insertion des enregistrements.....