MySQL and PHP
Copyright 1997-2021 the PHP Documentation Group.
mysqli_stmt::fetch
mysqli_stmt_fetch
Fetch results from a prepared statement into the bound variables
Object oriented style
public bool mysqli_stmt::fetch();
Procedural style
bool mysqli_stmt_fetch(mysqli_stmt stmt);
Fetch the result from a prepared statement into the variables
bound by
mysqli_stmt_bind_result
.
Note that all columns must be bound by the application before
calling
mysqli_stmt_fetch
.
Data are transferred unbuffered without calling
mysqli_stmt_store_result
which can decrease performance (but reduces memory cost).
stmt
Procedural style only: A statement identifier returned
by
mysqli_stmt_init
.
Table 3.15 Return Values
Value | Description |
---|---|
true | Success. Data has been fetched |
false | Error occurred |
null | No more rows/data exists or data truncation occurred |
Example 3.86 Object oriented style
<?php $mysqli = new mysqli("localhost", "my_user", "my_password", "world"); /* check connection */ if (mysqli_connect_errno()) { printf("Connect failed: %s\n", mysqli_connect_error()); exit(); } $query = "SELECT Name, CountryCode FROM City ORDER by ID DESC LIMIT 150,5"; if ($stmt = $mysqli->prepare($query)) { /* execute statement */ $stmt->execute(); /* bind result variables */ $stmt->bind_result($name, $code); /* fetch values */ while ($stmt->fetch()) { printf ("%s (%s)\n", $name, $code); } /* close statement */ $stmt->close(); } /* close connection */ $mysqli->close(); ?>
Example 3.87 Procedural style
<?php $link = mysqli_connect("localhost", "my_user", "my_password", "world"); /* check connection */ if (mysqli_connect_errno()) { printf("Connect failed: %s\n", mysqli_connect_error()); exit(); } $query = "SELECT Name, CountryCode FROM City ORDER by ID DESC LIMIT 150,5"; if ($stmt = mysqli_prepare($link, $query)) { /* execute statement */ mysqli_stmt_execute($stmt); /* bind result variables */ mysqli_stmt_bind_result($stmt, $name, $code); /* fetch values */ while (mysqli_stmt_fetch($stmt)) { printf ("%s (%s)\n", $name, $code); } /* close statement */ mysqli_stmt_close($stmt); } /* close connection */ mysqli_close($link); ?>
The above examples will output:
Rockford (USA) Tallahassee (USA) Salinas (USA) Santa Clarita (USA) Springfield (USA)
mysqli_prepare
|
mysqli_stmt_errno
|
mysqli_stmt_error
|
mysqli_stmt_bind_result
|