(PHP 5 >= 5.3.0, PHP 7)
SQLite3Stmt::bindParam — Binds a parameter to a statement variable
public SQLite3Stmt::bindParam ( mixed[1] $sql_param , mixed[2] &$param [, int $type ] ) : bool
Caution
Before PHP 7.2.14 and 7.3.0, respectively, SQLite3Stmt::reset()[3] must be called after the first call to SQLite3Stmt::execute()[4] if the bound value should be properly updated on following calls to SQLite3Stmt::execute()[5]. If SQLite3Stmt::reset()[6] is not called, the bound value will not change, even if the value assigned to the variable passed to SQLite3Stmt::bindParam() has changed, or SQLite3Stmt::bindParam() has been called again.
sql_param
Either a string[7] (for named parameters) or an int[8] (for positional parameters) identifying the statement variable to which the value should be bound. If a named parameter does not start with a colon (:) or an at sign (@), a colon (:) is automatically preprended. Positional parameters start with 1.
param
The parameter to bind to a statement variable.
type
The data type of the parameter to bind.
* SQLITE3_INTEGER: The value is a signed integer, stored in 1, 2, 3, 4, 6, or 8 bytes depending on the magnitude of the value.
* SQLITE3_FLOAT: The value is a floating point value, stored as an 8-byte IEEE floating point number.
* SQLITE3_TEXT: The value is a text string, stored using the database encoding (UTF-8, UTF-16BE or UTF-16-LE).
* SQLITE3_BLOB: The value is a blob of data, stored exactly as it was input.
* SQLITE3_NULL: The value is a NULL value.
As of PHP 7.0.7, if type is omitted, it is automatically detected from the type of the param: boolean[9] and integer[10] are treated as SQLITE3_INTEGER, float[11] as SQLITE3_FLOAT, null[12] as SQLITE3_NULL and all others as SQLITE3_TEXT. Formerly, if type has been omitted, it has defaulted to SQLITE3_TEXT.
Note:
If param is NULL, it is always treated as SQLITE3_NULL, regardless of the given type.
Returns TRUE if the parameter is bound to the statement variable, FALSE on failure.
Version Description
7.4.0 sql_param now also supports the @param notation.
Example #1 SQLite3Stmt::bindParam() Usage
This example shows how a single prepared statement with a single parameter binding can be used to insert multiple rows with different values.
<?php
$db = new SQLite3(':memory:');
$db->exec("CREATE TABLE foo (bar TEXT)");$stmt = $db->prepare("INSERT INTO foo VALUES (:bar)");
$stmt->bindParam(':bar', $bar, SQLITE3_TEXT);$bar = 'baz';
$stmt->execute();$bar = 42;
$stmt->execute();$res = $db->query("SELECT * FROM foo");
while (($row = $res->fetchArray(SQLITE3_ASSOC))) {
var_dump($row);
}
?>
The above example will output:
array(1) {
["bar"]=>
string(3) "baz"
}
array(1) {
["bar"]=>
string(2) "42"
}
Anonymous¶
5 years ago
Note that this bindParam needs a variable as the second parameter.
Use bindValue if you want to bind a value, such an array item.
Link: 4. SQLite3Stmt::execute()