PHP Core:
__DIR__
    
   __NAMESPACE__
    
   E_DEPRECATED
    
   E_USER_DEPRECATED
    
   INI_SCANNER_NORMAL
    
   INI_SCANNER_RAW
    
   PHP_MAXPATHLEN
    
   PHP_WINDOWS_NT_DOMAIN_CONTROLLER
    
   PHP_WINDOWS_NT_SERVER
    
   PHP_WINDOWS_NT_WORKSTATION
    
   PHP_WINDOWS_VERSION_BUILD
    
   PHP_WINDOWS_VERSION_MAJOR
    
   PHP_WINDOWS_VERSION_MINOR
    
   PHP_WINDOWS_VERSION_PLATFORM
    
   PHP_WINDOWS_VERSION_PRODUCTTYPE
    
   PHP_WINDOWS_VERSION_SP_MAJOR
    
   PHP_WINDOWS_VERSION_SP_MINOR
    
   PHP_WINDOWS_VERSION_SUITEMASK
    
   cURL:
CURLOPT_PROGRESSFUNCTION
    
   GD:
IMG_FILTER_PIXELATE
    
   JSON:
JSON_ERROR_CTRL_CHAR
    
   JSON_ERROR_DEPTH
    
   JSON_ERROR_NONE
    
   JSON_ERROR_STATE_MISMATCH
    
   JSON_ERROR_SYNTAX
    
   JSON_FORCE_OBJECT
    
   JSON_HEX_TAG
    
   JSON_HEX_AMP
    
   JSON_HEX_APOS
    
   JSON_HEX_QUOT
    
   LDAP:
LDAP_OPT_NETWORK_TIMEOUT
    
   LIBXML_LOADED_VERSION 
    
   PCRE:
PREG_BAD_UTF8_OFFSET_ERROR
    
   BUS_ADRALN
    
   BUS_ADRERR
    
   BUS_OBJERR
    
   CLD_CONTIUNED
    
   CLD_DUMPED
    
   CLD_EXITED
    
   CLD_KILLED
    
   CLD_STOPPED
    
   CLD_TRAPPED
    
   FPE_FLTDIV
    
   FPE_FLTINV
    
   FPE_FLTOVF
    
   FPE_FLTRES
    
   FPE_FLTSUB
    
   FPE_FLTUND
    
   FPE_INTDIV
    
   FPE_INTOVF
    
   ILL_BADSTK
    
   ILL_COPROC
    
   ILL_ILLADR
    
   ILL_ILLOPC
    
   ILL_ILLOPN
    
   ILL_ILLTRP
    
   ILL_PRVOPC
    
   ILL_PRVREG
    
   POLL_ERR
    
   POLL_HUP
    
   POLL_IN
    
   POLL_MSG
    
   POLL_OUT
    
   POLL_PRI
    
   SEGV_ACCERR
    
   SEGV_MAPERR
    
   SI_ASYNCIO
    
   SI_KERNEL
    
   SI_MESGQ
    
   SI_NOINFO
    
   SI_QUEUE
    
   SI_SIGIO
    
   SI_TIMER
    
   SI_TKILL
    
   SI_USER
    
   SIG_BLOCK
    
   SIG_SETMASK
    
   SIG_UNBLOCK
    
   TRAP_BRKPT
    
   TRAP_TRACE