added to char** - ffi_char_variadic() function

symplely · Mar 12, 2023 · 6cf5fd2 · 6cf5fd2
1 parent 199e9e7
commit 6cf5fd2
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Showing 2 changed files with 36 additions and 0 deletions.
diff --git a/preload.php b/preload.php
@@ -230,6 +230,25 @@ function ffi_char(string $string, bool $owned = false, bool $persistent = false)
     return $ptr;
   }
 
+  /**
+   * Convert PHP array of `string` to `char**` _string_.
+   *
+   * @param string $string
+   * @return CData __char**__
+   */
+  function ffi_char_variadic(string ...$string): CData
+  {
+    $n = 0;
+    $string_args = \FFI::new('char*[' . (\count($string) + 2) . ']', false);
+    foreach ($string as $value) {
+      $string_args[$n] = \ffi_char($value);
+      $n++;
+    }
+    $string_args[$n] = NULL;
+
+    return \ze_cast('char**', $string_args);
+  }
+
   /**
    * Creates a `char` C data structure of size.
    *

diff --git a/tests/900-misc_general_c.phpt b/tests/900-misc_general_c.phpt
@@ -48,6 +48,13 @@ var_dump($cc->value());
 $cc->free();
 $ct = c_array_type('zend_property_info_list', 'ze', 3, false);
 var_dump($ct);
+
+$commands = ffi_char_variadic('php', 'test.php', '2');
+var_dump($commands);
+var_dump(ffi_string($commands[0]));
+var_dump(ffi_string($commands[1]));
+var_dump(ffi_string($commands[2]));
+
 --EXPECTF--
 Original - 5208
 int(22548)
@@ -123,3 +130,13 @@ object(CStruct)#%d (1) {
   ["type"]=>
   string(21) "struct <anonymous>[3]"
 }
+object(FFI\CData:char**)#%d (1) {
+  [0]=>
+  object(FFI\CData:char*)#%d (1) {
+    [0]=>
+    string(1) "p"
+  }
+}
+string(3) "php"
+string(8) "test.php"
+string(1) "2"