Here is a list of all macros with links to the files they belong to:

- x -

X : encoding.c, hash_gost.c
X509_getm_notAfter : openssl.c
X509_getm_notBefore : openssl.c
X_OK : ioutil.h
XCHG_EAX_r : sljitNativeX86_common.c
XCHG_r_rm : sljitNativeX86_common.c
XCL_END : pcre2_internal.h
XCL_HASPROP : pcre2_internal.h
XCL_MAP : pcre2_internal.h
XCL_NOT : pcre2_internal.h
XCL_NOTPROP : pcre2_internal.h
XCL_PROP : pcre2_internal.h
XCL_RANGE : pcre2_internal.h
XCL_SINGLE : pcre2_internal.h
XDIGIT : pcre2_compile.c
xml_module_ptr : php_xml.h
XML_NAMESPACE : php_encoding.h
XML_NS_PREFIX : php_encoding.h
XMLREADER_LOAD_FILE : php_xmlreader.c
XMLREADER_LOAD_STRING : php_xmlreader.c
XMLREADER_REGISTER_PROP_HANDLER : php_xmlreader.c
XMLW_NAME_CHK : php_xmlwriter.c
XMLWRITER_FROM_OBJECT : php_xmlwriter.c
XOR : sljitNativeLOONGARCH_64.c, sljitNativeMIPS_common.c, sljitNativePPC_common.c, sljitNativeRISCV_common.c, sljitNativeX86_common.c
XOR_EAX_i32 : sljitNativeX86_common.c
XOR_r_rm : sljitNativeX86_common.c
XOR_rm_r : sljitNativeX86_common.c
XORI : sljitNativeLOONGARCH_64.c, sljitNativeMIPS_common.c, sljitNativePPC_common.c, sljitNativeRISCV_common.c
XORIS : sljitNativePPC_common.c
XORPD_x_xm : sljitNativeX86_common.c
XP_SOCK_BUF_SIZE : xp_socket.c
XPFPA_CW_DATATYPE : zend_float.h
XPFPA_DECLARE : zend_float.h
XPFPA_HAVE_CW : zend_float.h
XPFPA_RESTORE : zend_float.h
XPFPA_RESTORE_CW : zend_float.h
XPFPA_RETURN_DOUBLE : zend_float.h
XPFPA_RETURN_DOUBLE_EXTENDED : zend_float.h
XPFPA_RETURN_SINGLE : zend_float.h
XPFPA_STORE_CW : zend_float.h
XPFPA_SWITCH_DOUBLE : zend_float.h
XPFPA_SWITCH_DOUBLE_EXTENDED : zend_float.h
XPFPA_SWITCH_SINGLE : zend_float.h
XSD_1999_NAMESPACE : php_encoding.h
XSD_1999_TIMEINSTANT : php_encoding.h
XSD_1999_TIMEINSTANT_STRING : php_encoding.h
XSD_ANYTYPE : php_encoding.h
XSD_ANYTYPE_STRING : php_encoding.h
XSD_ANYURI : php_encoding.h
XSD_ANYURI_STRING : php_encoding.h
XSD_ANYXML : php_encoding.h
XSD_BASE64BINARY : php_encoding.h
XSD_BASE64BINARY_STRING : php_encoding.h
XSD_BOOLEAN : php_encoding.h
XSD_BOOLEAN_STRING : php_encoding.h
XSD_BYTE : php_encoding.h
XSD_BYTE_STRING : php_encoding.h
XSD_DATE : php_encoding.h
XSD_DATE_STRING : php_encoding.h
XSD_DATETIME : php_encoding.h
XSD_DATETIME_STRING : php_encoding.h
XSD_DECIMAL : php_encoding.h
XSD_DECIMAL_STRING : php_encoding.h
XSD_DOUBLE : php_encoding.h
XSD_DOUBLE_STRING : php_encoding.h
XSD_DURATION : php_encoding.h
XSD_DURATION_STRING : php_encoding.h
XSD_ENTITIES : php_encoding.h
XSD_ENTITIES_STRING : php_encoding.h
XSD_ENTITY : php_encoding.h
XSD_ENTITY_STRING : php_encoding.h
XSD_FLOAT : php_encoding.h
XSD_FLOAT_STRING : php_encoding.h
XSD_GDAY : php_encoding.h
XSD_GDAY_STRING : php_encoding.h
XSD_GMONTH : php_encoding.h
XSD_GMONTH_STRING : php_encoding.h
XSD_GMONTHDAY : php_encoding.h
XSD_GMONTHDAY_STRING : php_encoding.h
XSD_GYEAR : php_encoding.h
XSD_GYEAR_STRING : php_encoding.h
XSD_GYEARMONTH : php_encoding.h
XSD_GYEARMONTH_STRING : php_encoding.h
XSD_HEXBINARY : php_encoding.h
XSD_HEXBINARY_STRING : php_encoding.h
XSD_ID : php_encoding.h
XSD_ID_STRING : php_encoding.h
XSD_IDREF : php_encoding.h
XSD_IDREF_STRING : php_encoding.h
XSD_IDREFS : php_encoding.h
XSD_IDREFS_STRING : php_encoding.h
XSD_INT : php_encoding.h
XSD_INT_STRING : php_encoding.h
XSD_INTEGER : php_encoding.h
XSD_INTEGER_STRING : php_encoding.h
XSD_LANGUAGE : php_encoding.h
XSD_LANGUAGE_STRING : php_encoding.h
XSD_LONG : php_encoding.h
XSD_LONG_STRING : php_encoding.h
XSD_NAME : php_encoding.h
XSD_NAME_STRING : php_encoding.h
XSD_NAMESPACE : php_encoding.h
XSD_NCNAME : php_encoding.h
XSD_NCNAME_STRING : php_encoding.h
XSD_NEGATIVEINTEGER : php_encoding.h
XSD_NEGATIVEINTEGER_STRING : php_encoding.h
XSD_NMTOKEN : php_encoding.h
XSD_NMTOKEN_STRING : php_encoding.h
XSD_NMTOKENS : php_encoding.h
XSD_NMTOKENS_STRING : php_encoding.h
XSD_NONNEGATIVEINTEGER : php_encoding.h
XSD_NONNEGATIVEINTEGER_STRING : php_encoding.h
XSD_NONPOSITIVEINTEGER : php_encoding.h
XSD_NONPOSITIVEINTEGER_STRING : php_encoding.h
XSD_NORMALIZEDSTRING : php_encoding.h
XSD_NORMALIZEDSTRING_STRING : php_encoding.h
XSD_NOTATION : php_encoding.h
XSD_NOTATION_STRING : php_encoding.h
XSD_NS_PREFIX : php_encoding.h
XSD_POSITIVEINTEGER : php_encoding.h
XSD_POSITIVEINTEGER_STRING : php_encoding.h
XSD_QNAME : php_encoding.h
XSD_QNAME_STRING : php_encoding.h
XSD_SHORT : php_encoding.h
XSD_SHORT_STRING : php_encoding.h
XSD_STRING : php_encoding.h
XSD_STRING_STRING : php_encoding.h
XSD_TIME : php_encoding.h
XSD_TIME_STRING : php_encoding.h
XSD_TOKEN : php_encoding.h
XSD_TOKEN_STRING : php_encoding.h
XSD_UNSIGNEDBYTE : php_encoding.h
XSD_UNSIGNEDBYTE_STRING : php_encoding.h
XSD_UNSIGNEDINT : php_encoding.h
XSD_UNSIGNEDINT_STRING : php_encoding.h
XSD_UNSIGNEDLONG : php_encoding.h
XSD_UNSIGNEDLONG_STRING : php_encoding.h
XSD_UNSIGNEDSHORT : php_encoding.h
XSD_UNSIGNEDSHORT_STRING : php_encoding.h
XSD_UR_TYPE : php_encoding.h
XSD_UR_TYPE_STRING : php_encoding.h
XSD_WHITESPACE_COLLAPSE : php_sdl.h
XSD_WHITESPACE_PRESERVE : php_sdl.h
XSD_WHITESPACE_REPLACE : php_sdl.h
XSI_NAMESPACE : php_encoding.h
XSI_NS_PREFIX : php_encoding.h
XSL_DEFINE_PROP_ACCESSOR : php_xsl.c
XSL_SECPREF_CREATE_DIRECTORY : php_xsl.h
XSL_SECPREF_DEFAULT : php_xsl.h
XSL_SECPREF_NONE : php_xsl.h
XSL_SECPREF_READ_FILE : php_xsl.h
XSL_SECPREF_READ_NETWORK : php_xsl.h
XSL_SECPREF_WRITE_FILE : php_xsl.h
XSL_SECPREF_WRITE_NETWORK : php_xsl.h
XSL_TRY_OUTPUT_REPLACED_ERROR_MESSAGE : php_xsl.c
XSTRING : pcre2_config.c, pcre2_error.c
XTN : sljitNativeARM_64.c
XtOffsetOf : zend_portability.h
XVLD : sljitNativeLOONGARCH_64.c
XVPERMI : sljitNativeLOONGARCH_64.c
XVST : sljitNativeLOONGARCH_64.c
XX : apprentice.c, encoding.c
XX_NULL : apprentice.c
XXH3_SECRET_SIZE_MIN : xxhash.h
XXH_FALLTHROUGH : xxhash.h
XXH_HAS_ATTRIBUTE : xxhash.h
XXH_HAS_C_ATTRIBUTE : xxhash.h
XXH_HAS_CPP_ATTRIBUTE : xxhash.h
XXH_INLINE_ALL : php_hash_xxhash.h
XXH_PUBLIC_API : xxhash.h
XXH_VERSION_MAJOR : xxhash.h
XXH_VERSION_MINOR : xxhash.h
XXH_VERSION_NUMBER : xxhash.h
XXH_VERSION_RELEASE : xxhash.h
XXHASH_H_5627135585666179 : xxhash.h