====== Plesk >= 12.0 multi lsphps configuration for LSWS ======
You can create lsphp5x one by one from LSWS Admin console. If you prefer using the command line instead of the GUI tool, you can edit the LSWS configuration file (usually /usr/local/lsws/conf/httpd_config.xml) by adding the following to the <extProcessorList>… </extProcessorList> section: 

    <extProcessor>
      <type>lsapi</type>
      <name>lsphp70</name>
      <address>uds://tmp/lshttpd/lsphp70.sock</address>
      <maxConns>35</maxConns>
      <env>PHP_LSAPI_MAX_REQUESTS=5000</env>
      <env>PHP_LSAPI_CHILDREN=35</env>
      <initTimeout>60</initTimeout>
      <retryTimeout>0</retryTimeout>
      <persistConn>1</persistConn>
      <respBuffer>0</respBuffer>
      <autoStart>1</autoStart>
      <path>/opt/plesk/php/7.0/bin/lsphp</path>
      <backlog>100</backlog>
      <instances>1</instances>
      <extMaxIdleTime>10</extMaxIdleTime>
      <priority>0</priority>
      <memSoftLimit>2048M</memSoftLimit>
      <memHardLimit>2048M</memHardLimit>
      <procSoftLimit>400</procSoftLimit>
      <procHardLimit>500</procHardLimit>
    </extProcessor>
    <extProcessor>
      <type>lsapi</type>
      <name>lsphp56</name>
      <address>uds://tmp/lshttpd/lsphp56.sock</address>
      <maxConns>35</maxConns>
      <env>PHP_LSAPI_MAX_REQUESTS=5000</env>
      <env>PHP_LSAPI_CHILDREN=35</env>
      <initTimeout>60</initTimeout>
      <retryTimeout>0</retryTimeout>
      <persistConn>1</persistConn>
      <respBuffer>0</respBuffer>
      <autoStart>1</autoStart>
      <path>/opt/plesk/php/5.6/bin/lsphp</path>
      <backlog>100</backlog>
      <instances>1</instances>
      <extMaxIdleTime>10</extMaxIdleTime>
      <priority>0</priority>
      <memSoftLimit>2048M</memSoftLimit>
      <memHardLimit>2048M</memHardLimit>
      <procSoftLimit>400</procSoftLimit>
      <procHardLimit>500</procHardLimit>
    </extProcessor>
    <extProcessor>
      <type>lsapi</type>
      <name>lsphp55</name>
      <address>uds://tmp/lshttpd/lsphp55.sock</address>
      <maxConns>35</maxConns>
      <env>PHP_LSAPI_MAX_REQUESTS=5000</env>
      <env>PHP_LSAPI_CHILDREN=35</env>
      <initTimeout>60</initTimeout>
      <retryTimeout>0</retryTimeout>
      <persistConn>1</persistConn>
      <respBuffer>0</respBuffer>
      <autoStart>1</autoStart>
      <path>/opt/plesk/php/5.5/bin/lsphp</path>
      <extMaxIdleTime>10</extMaxIdleTime>
      <memSoftLimit>2048M</memSoftLimit>
      <memHardLimit>2048M</memHardLimit>
      <procSoftLimit>400</procSoftLimit>
      <procHardLimit>500</procHardLimit>
    </extProcessor>
    <extProcessor>
      <type>lsapi</type>
      <name>lsphp54</name>
      <address>uds://tmp/lshttpd/lsphp54.sock</address>
      <maxConns>35</maxConns>
      <env>PHP_LSAPI_MAX_REQUESTS=5000</env>
      <env>PHP_LSAPI_CHILDREN=35</env>
      <initTimeout>60</initTimeout>
      <retryTimeout>0</retryTimeout>
      <persistConn>1</persistConn>
      <respBuffer>0</respBuffer>
      <autoStart>1</autoStart>
      <path>/opt/plesk/php/5.4/bin/lsphp</path>
      <extMaxIdleTime>10</extMaxIdleTime>
      <memSoftLimit>2048M</memSoftLimit>
      <memHardLimit>2048M</memHardLimit>
      <procSoftLimit>400</procSoftLimit>
      <procHardLimit>500</procHardLimit>
    </extProcessor>
    <extProcessor>
      <type>lsapi</type>
      <name>lsphp53</name>
      <address>uds://tmp/lshttpd/lsphp53.sock</address>
      <maxConns>35</maxConns>
      <env>PHP_LSAPI_MAX_REQUESTS=5000</env>
      <env>PHP_LSAPI_CHILDREN=35</env>
      <initTimeout>60</initTimeout>
      <retryTimeout>0</retryTimeout>
      <persistConn>1</persistConn>
      <respBuffer>0</respBuffer>
      <autoStart>1</autoStart>
      <path>/opt/plesk/php/5.3/bin/lsphp</path>
      <extMaxIdleTime>10</extMaxIdleTime>
      <memSoftLimit>2048M</memSoftLimit>
      <memHardLimit>2048M</memHardLimit>
      <procSoftLimit>400</procSoftLimit>
      <procHardLimit>500</procHardLimit>
    </extProcessor>
    <extProcessor>
      <type>lsapi</type>
      <name>lsphp52</name>
      <address>uds://tmp/lshttpd/lsphp52.sock</address>
      <maxConns>35</maxConns>
      <env>PHP_LSAPI_MAX_REQUESTS=5000</env>
      <env>PHP_LSAPI_CHILDREN=35</env>
      <initTimeout>60</initTimeout>
      <retryTimeout>0</retryTimeout>
      <persistConn>1</persistConn>
      <respBuffer>0</respBuffer>
      <autoStart>1</autoStart>
      <path>/opt/plesk/php/5.2/bin/lsphp</path>
      <extMaxIdleTime>10</extMaxIdleTime>
      <memSoftLimit>2048M</memSoftLimit>
      <memHardLimit>2048M</memHardLimit>
      <procSoftLimit>400</procSoftLimit>
      <procHardLimit>500</procHardLimit>
    </extProcessor>