Maximum float value in php

Is there a way to programmatically retrieve the maximum flo开发者_运维百科at value for php. Akin to FLT_MAX or std::numeric_limits< float >::max() in C / C++?

I am using something like the following:

$minimumCost = MAXIMUM_FLOAT_VALUE??;

foreach ( $objects as $object )
{
    $cost = $object->CalculateCost();
    if ( $cost < $minimumCost )
    {
        $minimumCost = $cost;
    }
}

(using php 5.2)

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The float maximum is platform-dependant, and even though it could be useful to get it, there seems to be no (simple) way to get it. You can however use the INF (infinite) constant, which will be bigger than any other value you can ever put in a numeric type, if the goal is only to have a huge placeholder value.

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You can use the PHP_FLOAT_MAX predefined constant, I believe.