src/Soap/Client.php
public function setPersistanceTimeout($timeoutInSeconds = null)
    {
        if ($timeoutInSeconds === null) {
            //let us try default to default_socket_timeout
            $iniDefaultSocketTimeout = ini_get('default_socket_timeout');
            $this->persistanceTimeout = $iniDefaultSocketTimeout ? $iniDefaultSocketTimeout : 0; //if setting missing default to disabled value (0)
        } else {
            if ($timeoutInSeconds < 0) {
                throw new Exception('Persistance timeout must be a positive integer, 0 to disable or null to use ini default_socket_timeout value.');
            } else {
                $this->persistanceTimeout = $timeoutInSeconds;
            }
        }
        return $this;
    }
public function setPersistanceTimeout($timeoutInSeconds = null)
    {
        if ($timeoutInSeconds === null) {
            //let us try default to default_socket_timeout
            $iniDefaultSocketTimeout = ini_get('default_socket_timeout');
            $this->persistanceTimeout = $iniDefaultSocketTimeout ? $iniDefaultSocketTimeout : 0; //if setting missing default to disabled value (0)
        } else {
            if ($timeoutInSeconds < 0) {
                throw new Exception('Persistance timeout must be a positive integer, 0 to disable or null to use ini default_socket_timeout value.');
            } else {
                $this->persistanceTimeout = $timeoutInSeconds;
            }
        }
        return $this;
    }
Sets the data read (after a successful negotiation) timeout in seconds.
Throws an exception when value is negative.
Set 0 to disable timeout. null to use ini default_socket_timeout

@param int $timeoutInSeconds
@return $this
@throws Exception