provide stable machine interface for ini on command line with json

sapi/cli/cli.h

@@ -50,6 +50,7 @@ typedef enum php_cli_mode {
 	PHP_CLI_MODE_REFLECTION_ZEND_EXTENSION = 12,
 	PHP_CLI_MODE_SHOW_INI_CONFIG = 13,
 	PHP_CLI_MODE_SHOW_INI_DIFF = 14,
+	PHP_CLI_MODE_SHOW_INI_JSON = 15,
 } php_cli_mode;
 
 typedef struct php_cli_server_context {

sapi/cli/php_cli.c

@@ -25,8 +25,10 @@
 #include "zend_hash.h"
 #include "zend_modules.h"
 #include "zend_interfaces.h"
+#include "zend_smart_str.h"
 
 #include "ext/reflection/php_reflection.h"
+#include "ext/json/php_json.h"
 
 #include "SAPI.h"
 
@@ -826,6 +828,8 @@ static int do_cli(int argc, char **argv) /* {{{ */
 				if (php_optarg) {
 					if (strcmp(php_optarg, "diff") == 0) {
 						context.mode = PHP_CLI_MODE_SHOW_INI_DIFF;
+					} else if(strcmp(php_optarg, "json") == 0) {
+						context.mode = PHP_CLI_MODE_SHOW_INI_JSON;
 					} else {
 						param_error = "Unknown argument for --ini\n";
 					}
@@ -1148,6 +1152,56 @@ static int do_cli(int argc, char **argv) /* {{{ */
 				zend_array_destroy(sorted);
 				break;
 			}
+		case PHP_CLI_MODE_SHOW_INI_JSON:
+			{
+				zval out;
+				array_init_size(&out, 4);
+
+				add_assoc_string(&out, "path", PHP_CONFIG_FILE_PATH);
+				if (php_ini_opened_path) {
+					add_assoc_string(&out, "file", php_ini_opened_path);
+				}
+				if (php_ini_scanned_path) {
+					add_assoc_string(&out, "scan", php_ini_scanned_path);
+				}
+				if (php_ini_scanned_files) {
+					char* scanning = estrdup(php_ini_scanned_files);
+					char* token;
+					char* next = php_strtok_r(scanning, ",\n", &token);
+					zval scanned;
+					array_init(&scanned);
+
+					while (next) {
+						while (*next == ' ' || *next == '\t') {
+							next++;
+						}
+						if (*next != '\0') {
+							char *end = next + strlen(next) - 1;
+							while (end > next && (*end == ' ' || *end == '\t')) {
+								*end = '\0';
+								end--;
+							}
+							add_next_index_string(&scanned, next);
+						}
+						next = php_strtok_r(NULL, ",\n", &token);
+					}
+					add_assoc_zval(&out, "scanned", &scanned);
+					efree(scanning);
+				}
+				smart_str buf = {0};
+				if (php_json_encode(&buf, &out,
+						PHP_JSON_PRETTY_PRINT) == SUCCESS) {
+					fwrite(ZSTR_VAL(buf.s), 1, ZSTR_LEN(buf.s), stdout);
+					fwrite("\n", 1, sizeof("\n")-1, stdout);
+				} else {
+					fprintf(stderr,
+						"An error occured while trying to encode configuration\n");
+					EG(exit_status) = 1;
+				}
+				smart_str_free(&buf);
+				zval_dtor(&out);
+				break;
+			}
 		}
 	} zend_end_try();
 

sapi/cli/tests/026.phpt

@@ -0,0 +1,54 @@
+--TEST--
+CLI php --ini=json
+--SKIPIF--
+<?php
+include "skipif.inc";
+?>
+--FILE--
+<?php
+$php = \getenv('TEST_PHP_EXECUTABLE');
+
+$interface = \shell_exec(\sprintf(
+    "%s --ini=json",
+    $php));
+$script  = \shell_exec(\sprintf(
+    "%s -r 'echo json_encode([
+        \"file\"    => php_ini_loaded_file(),
+        \"scanned\" => php_ini_scanned_files() ?: []]);'",
+    $php));
+
+$response["interface"] = \json_decode($interface,
+    JSON_THROW_ON_ERROR|JSON_OBJECT_AS_ARRAY);
+$response["script"] = \json_decode($script,
+    JSON_THROW_ON_ERROR);
+if (isset($response["script"]["scanned"]) &&
+    $response["script"]["scanned"]) {
+    $response["script"]["scanned"] = 
+        \array_map('trim',\explode(
+            ",\n", $response["script"]["scanned"]));
+}
+
+if (!isset($response["interface"]["file"]) &&
+     isset($response["script"]["file"]) &&
+     $response["script"]["file"]) {
+    echo "interface is missing file\n";
+    var_dump($response);
+}
+
+if (!isset($response["interface"]["scanned"]) &&
+     isset($response["script"]["scanned"]) &&
+    $response["script"]["scanned"]) {
+    echo "interface is missing scanned\n";
+    var_dump($response);
+}
+
+if (isset($response["interface"]["scanned"]) &&
+    $response["interface"]["scanned"] != $response["script"]["scanned"]) {
+    echo "interface and script scanned do not match\n";
+    var_dump($response);
+}
+
+echo "OK\n";
+?>
+--EXPECT--
+OK