PhpAmqpLib/Wire/AMQPWriter.php
public function write_long($n)
    {
        if (($n < 0) || ($n > 4294967295)) {
            throw new AMQPInvalidArgumentException('Long out of range: ' . $n);
        }

        //Numeric strings >PHP_INT_MAX on 32bit are casted to PHP_INT_MAX, damn PHP
        if (empty($this->is64bits) && is_string($n)) {
            $n = (float) $n;
        }
        $this->out .= pack('N', $n);

        return $this;
    }
public function write_long($n)
    {
        if (($n < 0) || ($n > 4294967295)) {
            throw new AMQPInvalidArgumentException('Long out of range: ' . $n);
        }

        //Numeric strings >PHP_INT_MAX on 32bit are casted to PHP_INT_MAX, damn PHP
        if (empty($this->is64bits) && is_string($n)) {
            $n = (float) $n;
        }
        $this->out .= pack('N', $n);

        return $this;
    }
public function write_long ( $ n ) { if ( ( $ n < 0 ) || ( $ n > 4294967295 ) ) { throw new AMQPInvalidArgumentException ( 'Long out of range: ' . $ n ) ; } //Numeric strings >PHP_INT_MAX on 32bit are casted to PHP_INT_MAX, damn PHP if ( empty ( $ this -> is64bits ) && is_string ( $ n ) ) { $ n = ( float ) $ n ; } $ this -> out .= pack ( 'N' , $ n ) ; return $ this ; }
Write an integer as an unsigned 32-bit value

@param int $n
@return $this
Write an integer as an unsigned 32 - bit value