Ubuntu typing 'php' in terminal shows a lot of errors

I'm using Ubuntu 13.10 and php is installed and working perfectly. But, when I type `php` in the terminal, it lists a lot of errors (and after that, it goes to work perfectly) as below : MIB search path: /home/kevin/.snmp/mibs:/usr/share/snmp/mibs:/usr/share/snmp/mibs/iana:/usr/share/snmp/mibs/ietf:/usr/share/mibs/site:/usr/share/snmp/mibs:/usr/share/mibs/iana:/usr/share/mibs/ietf:/usr/share/mibs/netsnmp Cannot find module (SNMPv2-TC): At line 10 in /usr/share/snmp/mibs/UCD-DLMOD-MIB.txt Cannot find module (SNMPv2-SMI): At line 34 in /usr/share/snmp/mibs/UCD-SNMP-MIB.txt Cannot find module (SNMPv2-TC): At line 37 in /usr/share/snmp/mibs/UCD-SNMP-MIB.txt Did not find 'enterprises' in module #-1 (/usr/share/snmp/mibs/UCD-SNMP-MIB.txt) Did not find 'DisplayString' in module #-1 (/usr/share/snmp/mibs/UCD-SNMP-MIB.txt) Did not find 'TruthValue' in module #-1 (/usr/share/snmp/mibs/UCD-SNMP-MIB.txt) Unlinked OID in UCD-SNMP-MIB: ucdavis ::= { enterprises 2021 } Undefined identifier: enterprises near line 39 of /usr/share/snmp/mibs/UCD-SNMP-MIB.txt Did not find 'DisplayString' in module #-1 (/usr/share/snmp/mibs/UCD-DLMOD-MIB.txt) Did not find 'ucdExperimental' in module UCD-SNMP-MIB (/usr/share/snmp/mibs/UCD-DLMOD-MIB.txt) Unlinked OID in UCD-DLMOD-MIB: ucdDlmodMIB ::= { ucdExperimental 14 } Undefined identifier: ucdExperimental near line 13 of /usr/share/snmp/mibs/UCD-DLMOD-MIB.txt Cannot find module (MTA-MIB): At line 0 in (none) Cannot find module (NETWORK-SERVICES-MIB): At line 0 in (none) Cannot find module (SNMPv2-TC): At line 15 in /usr/share/snmp/mibs/UCD-DISKIO-MIB.txt Did not find 'DisplayString' in module #-1 (/usr/share/snmp/mibs/UCD-DISKIO-MIB.txt) Did not find 'ucdExperimental' in module UCD-SNMP-MIB (/usr/share/snmp/mibs/UCD-DISKIO-MIB.txt) Unlinked OID in UCD-DISKIO-MIB: ucdDiskIOMIB ::= { ucdExperimental 15 } Undefined identifier: ucdExperimental near line 19 of /usr/share/snmp/mibs/UCD-DISKIO-MIB.txt Cannot find module (SNMPv2-TC): At line 15 in /usr/share/snmp/mibs/LM-SENSORS-MIB.txt Did not find 'DisplayString' in module #-1 (/usr/share/snmp/mibs/LM-SENSORS-MIB.txt) Did not find 'ucdExperimental' in module UCD-SNMP-MIB (/usr/share/snmp/mibs/LM-SENSORS-MIB.txt) Unlinked OID in LM-SENSORS-MIB: lmSensors ::= { ucdExperimental 16 } Undefined identifier: ucdExperimental near line 32 of /usr/share/snmp/mibs/LM-SENSORS-MIB.txt Cannot find module (HOST-RESOURCES-MIB): At line 0 in (none) Cannot find module (HOST-RESOURCES-TYPES): At line 0 in (none) Cannot find module (SNMPv2-MIB): At line 0 in (none) Cannot find module (IF-MIB): At line 0 in (none) Cannot find module (IP-MIB): At line 0 in (none) Cannot find module (TCP-MIB): At line 0 in (none) Cannot find module (UDP-MIB): At line 0 in (none) Cannot...