diff --git a/reference/posix/constants.xml b/reference/posix/constants.xml
index 61f75b428025..cfe67e02a748 100644
--- a/reference/posix/constants.xml
+++ b/reference/posix/constants.xml
@@ -381,6 +381,188 @@
+
+
+ <function>posix_pathconf</function> constants
+
+
+
+ POSIX_PC_LINK_MAX
+ (int)
+
+
+
+ The maximum number of links a given file or directory can have.
+ Available as of PHP 8.3.0.
+
+
+
+
+
+ POSIX_PC_MAX_CANON
+ (int)
+
+
+
+ The maximum number of bytes in a terminal canonical input buffer
+ (pathname being then a character special file).
+ Available as of PHP 8.3.0.
+
+
+
+
+
+ POSIX_PC_MAX_INPUT
+ (int)
+
+
+
+ The maximum number of bytes of a terminal input queue
+ (pathname being then a character special file).
+ Available as of PHP 8.3.0.
+
+
+
+
+
+ POSIX_PC_NAME_MAX
+ (int)
+
+
+
+ The maximum number of characters for a file name alone, not its path.
+ Available as of PHP 8.3.0.
+
+
+
+
+
+ POSIX_PC_PATH_MAX
+ (int)
+
+
+
+ The maximum number of characters for a full path name.
+ Available as of PHP 8.3.0.
+
+
+
+
+
+ POSIX_PC_PIPE_BUF
+ (int)
+
+
+
+ The maximum number of bytes that can be written to a pipe in one operation.
+ Available as of PHP 8.3.0.
+
+
+
+
+
+ POSIX_PC_CHOWN_RESTRICTED
+ (int)
+
+
+
+ If privileges are required to be allow chown to work.
+ Available as of PHP 8.3.0.
+
+
+
+
+
+ POSIX_PC_NO_TRUNC
+ (int)
+
+
+
+ If a file name (or files under a directory) is longer than POSIX_PC_NAME_MAX.
+ Available as of PHP 8.3.0.
+
+
+
+
+
+ POSIX_PC_ALLOC_SIZE_MIN
+ (int)
+
+
+
+ The minimum number of bytes of storage allocated for any portion of a file.
+ Available as of PHP 8.3.0.
+
+
+
+
+
+ POSIX_PC_ALLOC_SYMLINK_MAX
+ (int)
+
+
+
+ The maximum number of symbolic links a given file or directory can have.
+ Available as of PHP 8.3.0.
+
+
+
+
+
+
+
+ <function>posix_sysconf</function> constants
+
+
+
+ POSIX_SC_ARG_MAX
+ (int)
+
+
+
+ The maximum number of bytes the arguments (and environment variables) can have.
+ Available as of PHP 8.3.0.
+
+
+
+
+
+ POSIX_SC_PAGESIZE
+ (int)
+
+
+
+ The number of bytes of the current page.
+ Available as of PHP 8.3.0.
+
+
+
+
+
+ POSIX_SC_NPROCESSORS_CONF
+ (int)
+
+
+
+ The number of cpus configured system wise.
+ Available as of PHP 8.3.0.
+
+
+
+
+
+ POSIX_SC_NPROCESSORS_ONLN
+ (int)
+
+
+
+ The number of cpus currently active system wise.
+ Available as of PHP 8.3.0.
+
+
+
+
+