pg_update

    (PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)

    pg_update — Update table

    Açıklama

    pg_update(
        PgSql\Connection$connection,
        string$table_name,
        array$values,
        array$conditions,
        int$flags = PGSQL_DML_EXEC
    ): string|bool

    pg_update() updates records that matches conditions with values.

    If flags is specified, pg_convert() is applied to values with the specified flags.

    By default pg_update() passes raw values. Values must be escaped or the PGSQL_DML_ESCAPE flag must be specified in flags. PGSQL_DML_ESCAPE quotes and escapes parameters/identifiers. Therefore, table/column names become case sensitive.

    Note that neither escape nor prepared query can protect LIKE query, JSON, Array, Regex, etc. These parameters should be handled according to their contexts. i.e. Escape/validate values.

    Bağımsız Değişkenler

    connection

    PostgreSQL veritabanı bağlantısı özkaynağı.

    table_name

    Name of the table into which to update rows.

    values

    An array whose keys are field names in the table table_name, and whose values are what matched rows are to be updated to.

    conditions

    An array whose keys are field names in the table table_name, and whose values are the conditions that a row must meet to be updated.

    flags

    Any number of PGSQL_CONV_FORCE_NULL, PGSQL_DML_NO_CONV, PGSQL_DML_ESCAPE, PGSQL_DML_EXEC, PGSQL_DML_ASYNC or PGSQL_DML_STRING combined. If PGSQL_DML_STRING is part of the flags then query string is returned. When PGSQL_DML_NO_CONV or PGSQL_DML_ESCAPE is set, it does not call pg_convert() internally.

    Dönen Değerler

    Başarı durumunda true, başarısızlık durumunda false döner. Returns string if PGSQL_DML_STRING is passed via flags.

    Sürüm Bilgisi

    Sürüm: Açıklama
    8.1.0bağlantı bağımsız değişkeni artık PgSql\Connection nesnesi kabul ediyor, evvelce bir özkaynak kabul ederdi.

    Örnekler

    Örnek 1 pg_update() example

    <?php
    $db     = pg_connect('dbname=foo');
    $data = array('field1'=>'AA', 'field2'=>'BB');
    // This is safe somewhat, since all values are escaped.

    Ayrıca Bakınız

    • pg_convert() - Convert associative array values into forms suitable for SQL statements
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