Fix build on PHP 7.2+
https://bugs.php.net/bug.php?id=75631
https://github.com/php/pecl-search_engine-solr/commit/744e32915d5989101267ed2c84a407c582dc6f31
--- src/php7/php_solr.c.orig
+++ src/php7/php_solr.c
@@ -566,7 +566,7 @@ static zend_function_entry solr_document_methods[] = {
 	SOLR_CTOR(SolrDocument, __construct, SolrDocument__construct_args)
 	SOLR_DTOR(SolrDocument, __destruct, Solr_no_args)
 
-	PHP_ME(SolrDocument, __clone, NULL, ZEND_ACC_PUBLIC | ZEND_ACC_CLONE)
+	PHP_ME(SolrDocument, __clone, NULL, ZEND_ACC_PUBLIC)
 	PHP_ME(SolrDocument, __set, SolrDocument_addField_args, ZEND_ACC_PUBLIC)
 	PHP_ME(SolrDocument, __get, SolrDocument_getField_args, ZEND_ACC_PUBLIC)
 	PHP_ME(SolrDocument, __isset, SolrDocument_fieldExists_args, ZEND_ACC_PUBLIC)
@@ -609,7 +609,7 @@ static zend_function_entry solr_document_methods[] = {
 static zend_function_entry solr_input_document_methods[] = {
 	SOLR_CTOR(SolrInputDocument, __construct, SolrInputDocument__construct_args)
 	SOLR_DTOR(SolrInputDocument, __destruct, Solr_no_args)
-	PHP_ME(SolrInputDocument, __clone, NULL, ZEND_ACC_PUBLIC | ZEND_ACC_CLONE)
+	PHP_ME(SolrInputDocument, __clone, NULL, ZEND_ACC_PUBLIC)
 	PHP_ME(SolrInputDocument, __sleep, Solr_no_args, ZEND_ACC_PUBLIC)
 	PHP_ME(SolrInputDocument, __wakeup, NULL, ZEND_ACC_PUBLIC)
 	PHP_ME(SolrInputDocument, setBoost, SolrInputDocument_setBoost_args, ZEND_ACC_PUBLIC)
@@ -645,7 +645,7 @@ static zend_function_entry solr_client_methods[] = {
 	SOLR_DTOR(SolrClient, __destruct, Solr_no_args)
 	PHP_ME(SolrClient, __sleep, Solr_no_args, ZEND_ACC_PUBLIC)
 	PHP_ME(SolrClient, __wakeup, NULL, ZEND_ACC_PUBLIC)
-	PHP_ME(SolrClient, __clone, NULL, ZEND_ACC_PUBLIC | ZEND_ACC_CLONE)
+	PHP_ME(SolrClient, __clone, NULL, ZEND_ACC_PUBLIC)
 	PHP_ME(SolrClient, getOptions, Solr_no_args, ZEND_ACC_PUBLIC)
 	PHP_ME(SolrClient, getDebug, Solr_no_args, ZEND_ACC_PUBLIC)
 	PHP_ME(SolrClient, setServlet, SolrClient_setServlet_args, ZEND_ACC_PUBLIC)
@@ -722,7 +722,7 @@ static zend_function_entry solr_params_methods[] = {
 	PHP_ME(SolrParams, getParams, Solr_no_args, ZEND_ACC_PUBLIC)
 	PHP_ME(SolrParams, getParam, SolrParams_getParam_args, ZEND_ACC_PUBLIC)
 	PHP_ME(SolrParams, getPreparedParams, Solr_no_args, ZEND_ACC_PUBLIC)
-	PHP_ME(SolrParams, __clone, NULL, ZEND_ACC_PUBLIC | ZEND_ACC_CLONE)
+	PHP_ME(SolrParams, __clone, NULL, ZEND_ACC_PUBLIC)
 	PHP_ME(SolrParams, serialize,   NULL, ZEND_ACC_PUBLIC)
 	PHP_ME(SolrParams, unserialize,  SolrParams_unserialize_args, ZEND_ACC_PUBLIC)
 	PHP_MALIAS(SolrParams, add, addParam, SolrParams_addParam_args, ZEND_ACC_PUBLIC)
--- src/php7/solr_functions_helpers.c.orig
+++ src/php7/solr_functions_helpers.c
@@ -1404,19 +1404,28 @@ PHP_SOLR_API long solr_get_json_last_error(TSRMLS_D)
 static inline int solr_pcre_replace_into_buffer(solr_string_t *buffer, char * search, char *replace)
 {
     zend_string *result;
-    zval replace_val;
     int limit = -1;
     int replace_count = -1;
     zend_string *regex_str = zend_string_init(search, strlen(search), 0);
     zend_string *subject_str = zend_string_init(buffer->str, buffer->len, 0);
+#if PHP_VERSION_ID >= 70200
+    zend_string *replace_str = zend_string_init(replace, strlen(replace), 0);
+#else
+    zval replace_val;
     ZVAL_STRING(&replace_val, replace);
+#endif
+
     result = php_pcre_replace(
             regex_str,
             subject_str,
             buffer->str,
             buffer->len,
+#if PHP_VERSION_ID >= 70200
+            replace_str,
+#else
             &replace_val,
             0,
+#endif
             limit,
             &replace_count
     );
@@ -1424,7 +1433,11 @@ static inline int solr_pcre_replace_into_buffer(solr_string_t *buffer, char * se
     solr_string_set_ex(buffer, (solr_char_t *)result->val, (size_t)result->len);
 /*    fprintf(stdout, "%s", buffer->str); */
     efree(result);
+#if PHP_VERSION_ID >= 70200
+    zend_string_release(replace_str);
+#else
     zval_ptr_dtor(&replace_val);
+#endif
     zend_string_release(regex_str);
     zend_string_release(subject_str);