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@ 2014-10-28T10:08:27Z

<?php

function pdo_named_in_clause_from_array($array, $name = 'in') {
    $in = $data = array();
    $i = 0;

    $name = preg_replace('/[^a-z0-9_]+/', '', (string)$name);
    if (!preg_match('/^[a-z]/i', $name)) {
        throw new \InvalidArgumentException('Placeholder name ' . $name . ': must begin with a letter');
    }

    foreach ($array as $value) {
        $key = $name . $i++;
        $in[] = ':' . $key;
        $data[$key] = $value;
    }

    return array(implode(', ', $in), $data);
}

$inList = [1, 2, 3];

list($inClause, $inData) = pdo_named_in_clause_from_array($inList);

$query = "UPDATE table SET value1 = :val1, value2 = :val2, WHERE id IN ($inClause)";
$data = array('val1' => 'Hello', 'val2' => 'World') + $inData;

var_dump($query, $data);

/*
$stmt = $db->prepare($query);
$stmt->execute($data);
*/

Output for git.master, git.master_jit, rfc.property-hooks: string(79) "UPDATE table SET value1 = :val1, value2 = :val2, WHERE id IN (:in0, :in1, :in2)" array(5) { ["val1"]=> string(5) "Hello" ["val2"]=> string(5) "World" ["in0"]=> int(1) ["in1"]=> int(2) ["in2"]=> int(3) }

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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