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? ??? ?? PHP ???? MySQL ???? PHP ID ??? ????? ???? ??? ??????

MySQL ???? PHP ID ??? ????? ???? ??? ??????

Dec 15, 2024 am 04:31 AM

How to Efficiently Use PHP Arrays of IDs in MySQL Queries?

PHP? ???? MySQL ???? ID ?? ??

PHP?? ?? ID ??? ??? ? ?? ???? ???. MySQL ???. ? ????? ?? ????? ???? ??? ?????.

??? ? ?? ??

???? ?? ?? ? ??? ?? ? ??? ??? ?? ??? ?? ???? ????. ?? ??? ????.

$ids  = array(2, 4, 6, 8);

// Prepare the SQL statement with a single parameter placeholder
$sql  = "UPDATE MyTable SET LastUpdated = GETDATE() WHERE id = ?";
$stmt = $mysqli->prepare($sql);

// Bind a different value to the placeholder for each execution
for ($i = 0; $i < count($ids); $i++) {
    $stmt->bind_param("i", $ids[$i]);
    $stmt->execute();
    echo "Updated record ID: $id\n";
}

?? ?? ???? ?? ?? ?

?? ?? ?? ???? ?? ?? SQL ?? ??? ? ????.

$ids    = array(2, 4, 6, 8);

// Prepare the SQL statement with multiple parameter placeholders
$params = implode(",", array_fill(0, count($ids), "?"));
$sql    = "UPDATE MyTable SET LastUpdated = GETDATE() WHERE id IN ($params)";
$stmt   = $mysqli->prepare($sql);

// Bind all parameter values at once using dynamic function call
$types = str_repeat("i", count($ids));
$args = array_merge(array($types), $ids);
call_user_func_array(array($stmt, 'bind_param'), ref($args));

// Execute the query for all input values in one step
$stmt->execute();

?? ?? ??? ??? ???? ?????????

  • ?? ?? ??: ?? ???? ? ?? ??? ??????? ???? UPDATE ? INSERT ??? ?????.
  • ?? ? ?? ??: SELECT ? DELETE ???? ??? ???? ?? ???? ????? ? ? ??????. data.

Prepared ?? ??

Prepared ?? SQL ??? ?? ?? ?? ??? ??? ?? ?? ?? ??? ?????.

  • ?? ??????? ???? ? ? ????? ?? ? ???? ? ??? ?? ???? ????.
  • ?? ?? ???? ?? ????? ??? ?? ??? ??? ?????.
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? ??? MySQL ???? PHP ID ??? ????? ???? ??? ??????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!

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