PHP Pre-defined constants

These constants are defined in the kernel of PHP. It contains PHP, Zend engines, and SAPI modules.

Php_version (String)

Php_os (String)

Php_eol (String)
Available from PHP 4.3.10 and PHP 5.0.2

Php_int_max (integer)
Available from PHP 4.4.0 and PHP 5.0.5

Php_int_size (integer)
Available from PHP 4.4.0 and PHP 5.0.5

Default_include_path (String)

Pear_install_dir (String)

Pear_extension_dir (String)

Php_extension_dir (String)

Php_bindir (String)

Php_libdir (String)

Php_datadir (String)

Php_sysconfdir (String)

Php_localstatedir (String)

Php_config_file_path (String)

Php_output_handler_start (integer)

Php_output_handler_cont (integer)

Php_output_handler_end (integer)

E_error (integer)

E_warning (integer)

E_parse (integer)

E_notice (integer)

E_core_error (integer)

E_core_warning (integer)

E_compile_error (integer)

E_compile_warning (integer)

E_user_error (integer)

E_user_warning (integer)

E_user_notice (integer)

E_all (integer)

E_strict (integer)
Valid from PHP 5.0.0

__compiler_halt_offset__ (integer)
Valid from PHP 5.1.0

See also Magic constants.

Standard pre-defined constants
These constants are defined by default in PHP.

Extr_overwrite (integer)

Extr_skip (integer)

Extr_prefix_same (integer)

Extr_prefix_all (integer)

Extr_prefix_invalid (integer)

Extr_prefix_if_exists (integer)

Extr_if_exists (integer)

SORT_ASC (integer)

Sort_desc (integer)

Sort_regular (integer)

Sort_numeric (integer)

Sort_string (integer)

Case_lower (integer)

Case_upper (integer)

Count_normal (integer)

Count_recursive (integer)

Assert_active (integer)

Assert_callback (integer)

Assert_bail (integer)

Assert_warning (integer)

Assert_quiet_eval (integer)

Connection_aborted (integer)

Connection_normal (integer)

Connection_timeout (integer)

Ini_user (integer)

Ini_perdir (integer)

Ini_system (integer)

Ini_all (integer)

M_e (float)

M_LOG2E (float)

m_log10e (float)

M_LN2 (float)

M_ln10 (float)

M_PI (float)

M_pi_2 (float)

M_pi_4 (float)

M_1_PI (float)

M_2_PI (float)

M_2_SQRTPI (float)

M_sqrt2 (float)

M_sqrt1_2 (float)

Crypt_salt_length (integer)

Crypt_std_des (integer)

Crypt_ext_des (integer)

CRYPT_MD5 (integer)

Crypt_blowfish (integer)

Directory_separator (String)

Seek_set (integer)

Seek_cur (integer)

Seek_end (integer)

Lock_sh (integer)

LOCK_EX (integer)

Lock_un (integer)

LOCK_NB (integer)

Html_specialchars (integer)

Html_entities (integer)

Ent_compat (integer)

Ent_quotes (integer)

Ent_noquotes (integer)

Info_general (integer)

Info_credits (integer)

Info_configuration (integer)

Info_modules (integer)

Info_environment (integer)

Info_variables (integer)

Info_license (integer)

Info_all (integer)

Credits_group (integer)

Credits_general (integer)

Credits_sapi (integer)

Credits_modules (integer)

Credits_docs (integer)

Credits_fullpage (integer)

Credits_qa (integer)

Credits_all (integer)

Str_pad_left (integer)

Str_pad_right (integer)

Str_pad_both (integer)

Pathinfo_dirname (integer)

Pathinfo_basename (integer)

Pathinfo_extension (integer)

Path_separator (String)

Char_max (integer)

Lc_ctype (integer)

Lc_numeric (integer)

Lc_time (integer)

Lc_collate (integer)

Lc_monetary (integer)

Lc_all (integer)

Lc_messages (integer)

Abday_1 (integer)

Abday_2 (integer)

Abday_3 (integer)

Abday_4 (integer)

Abday_5 (integer)

Abday_6 (integer)

Abday_7 (integer)

Day_1 (integer)

Day_2 (integer)

Day_3 (integer)

Day_4 (integer)

Day_5 (integer)

Day_6 (integer)

Day_7 (integer)

Abmon_1 (integer)

Abmon_2 (integer)

Abmon_3 (integer)

Abmon_4 (integer)

Abmon_5 (integer)

Abmon_6 (integer)

Abmon_7 (integer)

Abmon_8 (integer)

Abmon_9 (integer)

Abmon_10 (integer)

Abmon_11 (integer)

Abmon_12 (integer)

Mon_1 (integer)

Mon_2 (integer)

Mon_3 (integer)

Mon_4 (integer)

Mon_5 (integer)

Mon_6 (integer)

Mon_7 (integer)

Mon_8 (integer)

Mon_9 (integer)

Mon_10 (integer)

Mon_11 (integer)

Mon_12 (integer)

Am_str (integer)

Pm_str (integer)

D_T_FMT (integer)

D_FMT (integer)

T_FMT (integer)

T_FMT_AMPM (integer)

ERA (integer)

Era_year (integer)

ERA_D_T_FMT (integer)

ERA_D_FMT (integer)

ERA_T_FMT (integer)

Alt_digits (integer)

Int_curr_symbol (integer)

Currency_symbol (integer)

Crncystr (integer)

Mon_decimal_point (integer)

Mon_thousands_sep (integer)

Mon_grouping (integer)

Positive_sign (integer)

Negative_sign (integer)

Int_frac_digits (integer)

Frac_digits (integer)

P_cs_precedes (integer)

P_sep_by_space (integer)

N_cs_precedes (integer)

N_sep_by_space (integer)

P_sign_posn (integer)

N_sign_posn (integer)

Decimal_point (integer)

Radixchar (integer)

Thousands_sep (integer)

Thousep (integer)

GROUPING (integer)

yesexpr (integer)

noexpr (integer)

Yesstr (integer)

Nostr (integer)

CodeSet (integer)

Log_emerg (integer)

Log_alert (integer)

Log_crit (integer)

Log_err (integer)

Log_warning (integer)

Log_notice (integer)

Log_info (integer)

Log_debug (integer)

Log_kern (integer)

Log_user (integer)

Log_mail (integer)

Log_daemon (integer)

Log_auth (integer)

Log_syslog (integer)

LOG_LPR (integer)

Log_news (integer)

LOG_UUCP (integer)

Log_cron (integer)

Log_authpriv (integer)

Log_local0 (integer)

Log_local1 (integer)

Log_local2 (integer)

Log_local3 (integer)

Log_local4 (integer)

LOG_LOCAL5 (integer)

LOG_LOCAL6 (integer)

LOG_LOCAL7 (integer)

Log_pid (integer)

Log_cons (integer)

Log_odelay (integer)

Log_ndelay (integer)

Log_nowait (integer)

Log_perror (integer)

PHP Pre-defined constants