Work-around for https://bugs.php.net/bug.php?id=39598
Fixes #3922
diff --git a/system/libraries/Email.php b/system/libraries/Email.php
index 66b5803..57693e1 100644
--- a/system/libraries/Email.php
+++ b/system/libraries/Email.php
@@ -2126,12 +2126,32 @@
protected function _send_data($data)
{
$data .= $this->newline;
- for ($written = 0, $length = strlen($data); $written < $length; $written += $result)
+ for ($written = $timestamp = 0, $length = strlen($data); $written < $length; $written += $result)
{
if (($result = fwrite($this->_smtp_connect, substr($data, $written))) === FALSE)
{
break;
}
+ // See https://bugs.php.net/bug.php?id=39598 and http://php.net/manual/en/function.fwrite.php#96951
+ elseif ($result === 0)
+ {
+ if ($timestamp === 0)
+ {
+ $timestamp = time();
+ }
+ elseif ($timestamp < (time() - $this->smtp_timeout))
+ {
+ $result = FALSE;
+ break;
+ }
+
+ usleep(250000);
+ continue;
+ }
+ else
+ {
+ $timestamp = 0;
+ }
}
if ($result === FALSE)