mysqli_stmt_bind_param

Binds variables to a prepared statement as parameters (PHP 5)
bool mysqli_stmt_bind_param ( mysqli_stmt stmt, string types, mixed &var1 [, mixed &...] )

Example 1556. Object oriented style

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<?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();

}

$stmt = $mysqli->prepare("INSERT INTO CountryLanguage VALUES (?, ?, ?, ?)");
$stmt->bind_param('sssd', $code, $language, $official, $percent);

$code = 'DEU';
$language = 'Bavarian';
$official = "F";
$percent = 11.2;

/* execute prepared statement */
$stmt->execute();

printf("%d Row inserted.\n", $stmt->affected_rows);

/* close statement and connection */
$stmt->close();

/* Clean up table CountryLanguage */
$mysqli->query("DELETE FROM CountryLanguage WHERE Language='Bavarian'");
printf("%d Row deleted.\n", $mysqli->affected_rows);

/* close connection */
$mysqli->close();
?>

Example 1557. Procedural style

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<?php

$link = mysqli_connect('localhost', 'my_user', 'my_password', 'world');

/* check connection */
if (!$link) {

    printf("Connect failed: %s\n", mysqli_connect_error());

    exit();

}

$stmt = mysqli_prepare($link, "INSERT INTO CountryLanguage VALUES (?, ?, ?, ?)");
mysqli_stmt_bind_param($stmt, 'sssd', $code, $language, $official, $percent);

$code = 'DEU';
$language = 'Bavarian';
$official = "F";
$percent = 11.2;

/* execute prepared statement */
mysqli_stmt_execute($stmt);

printf("%d Row inserted.\n", mysqli_stmt_affected_rows($stmt));

/* close statement and connection */
mysqli_stmt_close($stmt);

/* Clean up table CountryLanguage */
mysqli_query($link, "DELETE FROM CountryLanguage WHERE Language='Bavarian'");
printf("%d Row deleted.\n", mysqli_affected_rows($link));

/* close connection */
mysqli_close($link);
?>

Code Examples / Notes » mysqli_stmt_bind_param

mixleplix1

To continue on previous post Bigints and the 'd' type: If the digit you insert is longer then 16 digits the last digits will alter. I was noticing this in my inserts. 1111111111111111111 changes to 1111111111111111168 I had to switch to using 's' as type

usera

Some examples in the documentation suggest that you can call $stmt->bind_param() once, then call $stmt->execute() several times while altering the bound variables each time, so as to e.g. insert several records into a data base. This is not true. You need to call $stmt->bind_param() once each time AFTER you altered the set of variables, and BEFORE you call $stmt->execute() This may be a bug. If it is not, the documentation is flawed, and there is no gain to the programmer using the new mysqli interface at this point.

flame

Columns with type bigint need to be specified as type 'd' NOT 'i'. Using 'i' results in large numbers (eg 3000169151) being truncated. -- flame

evangun2001

About the previous message : I don't know if it has been fixed or if it always worked, but binding parameters only once works (almost) fine. Just mind the bug (current version: 5.2.4) I describe here : http://bugs.php.net/bug.php?id=42689

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mysqli_affected_rows
mysqli_autocommit
mysqli_bind_param
mysqli_bind_result
mysqli_change_user
mysqli_character_set_name
mysqli_client_encoding
mysqli_close
mysqli_commit
mysqli_connect_errno
mysqli_connect_error
mysqli_connect
mysqli_data_seek
mysqli_debug
mysqli_disable_reads_from_master
mysqli_disable_rpl_parse
mysqli_dump_debug_info
mysqli_embedded_server_end
mysqli_embedded_server_start
mysqli_enable_reads_from_master
mysqli_enable_rpl_parse
mysqli_errno
mysqli_error
mysqli_escape_string
mysqli_execute
mysqli_fetch_array
mysqli_fetch_assoc
mysqli_fetch_field_direct
mysqli_fetch_field
mysqli_fetch_fields
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mysqli_fetch_object
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mysqli_fetch
mysqli_field_count
mysqli_field_seek
mysqli_field_tell
mysqli_free_result
mysqli_get_charset
mysqli_get_client_info
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mysqli_get_host_info
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mysqli_get_warnings
mysqli_info
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mysqli_kill
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mysqli_multi_query
mysqli_next_result
mysqli_num_fields
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mysqli_ping
mysqli_prepare
mysqli_query
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mysqli_real_escape_string
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mysqli_report
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mysqli_server_init
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mysqli_sqlstate
mysqli_ssl_set
mysqli_stat
mysqli_stmt_affected_rows
mysqli_stmt_attr_get
mysqli_stmt_attr_set
mysqli_stmt_bind_param
mysqli_stmt_bind_result
mysqli_stmt_close
mysqli_stmt_data_seek
mysqli_stmt_errno
mysqli_stmt_error
mysqli_stmt_execute
mysqli_stmt_fetch
mysqli_stmt_field_count
mysqli_stmt_free_result
mysqli_stmt_get_warnings
mysqli_stmt_init
mysqli_stmt_insert_id
mysqli_stmt_num_rows
mysqli_stmt_param_count
mysqli_stmt_prepare
mysqli_stmt_reset
mysqli_stmt_result_metadata
mysqli_stmt_send_long_data
mysqli_stmt_sqlstate
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mysqli_store_result
mysqli_thread_id
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mysqli_use_result
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