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-rw-r--r--php/src/Google/Protobuf/Internal/RepeatedField.php4
1 files changed, 4 insertions, 0 deletions
diff --git a/php/src/Google/Protobuf/Internal/RepeatedField.php b/php/src/Google/Protobuf/Internal/RepeatedField.php
index 0dc5d9d2..2ad4709a 100644
--- a/php/src/Google/Protobuf/Internal/RepeatedField.php
+++ b/php/src/Google/Protobuf/Internal/RepeatedField.php
@@ -225,6 +225,10 @@ class RepeatedField implements \ArrayAccess, \IteratorAggregate, \Countable
GPBUtil::checkString($value, true);
break;
case GPBType::MESSAGE:
+ if (is_null($value)) {
+ trigger_error("RepeatedField element cannot be null.",
+ E_USER_ERROR);
+ }
GPBUtil::checkMessage($value, $this->klass);
break;
default: