ini_get

    (PHP 4, PHP 5, PHP 7, PHP 8)

    ini_get — Gets the value of a configuration option

    Descrição

    ini_get(string$option): string|false

    Returns the value of the configuration option on success.

    Parâmetros

    option

    The configuration option name.

    Valor Retornado

    Returns the value of the configuration option as a string on success, or an empty string for null values. Returns false if the configuration option doesn't exist.

    Exemplos

    Exemplo #1 A few ini_get() examples

    <?php


    echo 'display_errors = ' . ini_get('display_errors') . "\n";
    echo     'register_globals = ' . ini_get('register_globals') . "\n";
    echo     'post_max_size = ' . ini_get('post_max_size') . "\n";
    echo     'post_max_size+1 = ' . (ini_get('post_max_size')+1) . "\n";
    echo     'post_max_size in bytes = ' . return_bytes(ini_get('post_max_size'));

    function     return_bytes($val) {
    $val = trim($val);
    $last = strtolower($val[strlen($val)-1]);
    switch(    $last) {
    // The 'G' modifier is available
    case 'g':
    $val *= 1024;
    case     'm':
    $val *= 1024;
    case     'k':
    $val *= 1024;
    }

    return     $val;
    }

    ?>

    O exemplo acima produzirá algo semelhante a:

    display_errors = 1 register_globals = 0 post_max_size = 8M post_max_size+1 = 9 post_max_size in bytes = 8388608

    Notas

    Nota: When querying boolean values

    A boolean ini value of off will be returned as an empty string or "0" while a boolean ini value of on will be returned as "1". The function can also return the literal string of INI value.

    Nota: When querying memory size values

    Many ini memory size values, such as upload_max_filesize, are stored in the php.ini file in shorthand notation. ini_get() will return the exact string stored in the php.ini file and NOT its int equivalent. Attempting normal arithmetic functions on these values will not have otherwise expected results. The example above shows one way to convert shorthand notation into bytes, much like how the PHP source does it.

    Nota:

    ini_get() can't read "array" ini options such as pdo.dsn.*, and returns false in this case.

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