php: add detection of PHP 8.0, fix compilation errors

cmake/FindPHP.cmake

@@ -24,11 +24,12 @@ endif()
 
 find_package(PkgConfig)
 if(PKG_CONFIG_FOUND)
-  pkg_search_module(PHP php7)
+  pkg_search_module(PHP php8 php7)
 endif()
 
 if(NOT PHP_FOUND)
   find_program(PHP_CONFIG_EXECUTABLE NAMES
+    php-config8.0 php-config80
     php-config7.4 php-config74
     php-config7.3 php-config73
     php-config7.2 php-config72
@@ -41,9 +42,9 @@ if(NOT PHP_FOUND)
     execute_process(COMMAND ${PHP_CONFIG_EXECUTABLE} --includes OUTPUT_VARIABLE PHP_INCLUDE_DIRS OUTPUT_STRIP_TRAILING_WHITESPACE)
     execute_process(COMMAND ${PHP_CONFIG_EXECUTABLE} --libs OUTPUT_VARIABLE PHP_LIBS OUTPUT_STRIP_TRAILING_WHITESPACE)
     execute_process(COMMAND ${PHP_CONFIG_EXECUTABLE} --version OUTPUT_VARIABLE PHP_VERSION OUTPUT_STRIP_TRAILING_WHITESPACE)
-    if(${PHP_VERSION} MATCHES "^7")
+    if(${PHP_VERSION} MATCHES "^[78]")
       find_library(PHP_LIB
-        NAMES php7.4 php7.3 php7.2 php7.1 php7.0 php7
+        NAMES php8.0 php7.4 php7.3 php7.2 php7.1 php7.0 php7
         HINTS ${PHP_LIB_PREFIX} ${PHP_LIB_PREFIX}/lib ${PHP_LIB_PREFIX}/lib64
       )
       if(PHP_LIB)

src/plugins/php/weechat-php-api.c

@@ -119,7 +119,7 @@ API_FUNC(register)
                         php_registered_script->name);
         API_RETURN_ERROR;
     }
-    if (zend_parse_parameters (ZEND_NUM_ARGS() TSRMLS_CC, "SSSSSzS",
+    if (zend_parse_parameters (ZEND_NUM_ARGS(), "SSSSSzS",
                                &name, &author, &version, &license, &description,
                                &shutdown_func, &charset) == FAILURE)
     {

src/plugins/php/weechat-php.c

@@ -1246,8 +1246,18 @@ php_weechat_sapi_error (int type, const char *format, ...)
     }
 }
 
-#if PHP_VERSION_ID >= 70100
-/* PHP >= 7.1 */
+#if PHP_VERSION_ID >= 80000
+/* PHP >= 8.0 */
+void
+php_weechat_log_message (const char *message, int syslog_type_int)
+{
+    /* make C compiler happy */
+    (void) syslog_type_int;
+
+    php_weechat_ub_write (message, strlen (message));
+}
+#elif PHP_VERSION_ID >= 70100
+/* 7.1 <= PHP < 8.0 */
 void
 php_weechat_log_message (char *message, int syslog_type_int)
 {