symfony
diff --git a/‎src/Symfony/Component/Process/Process.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Process/Process.php
+3-1Lines changed: 3 additions & 1 deletion b/‎src/Symfony/Component/Process/Process.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Process/Process.php
+3-1Lines changed: 3 additions & 1 deletion
@@ -331,7 +331,9 @@ public function start(callable $callback = null/*, array $env = array()*/)
         } else {
             $envPairs = array();
             foreach ($env as $k => $v) {
-                $envPairs[] = $k.'='.$v;
+                if (false !== $v) {
+                    $envPairs[] = $k.'='.$v;
+                }
             }
         }
Original file line number	Diff line number	Diff line change
`@@ -331,7 +331,9 @@ public function start(callable $callback = null/, array $env = array()/)`
`331`	`331`	`} else {`
`332`	`332`	`$envPairs = array();`
`333`	`333`	`foreach ($env as $k => $v) {`
`334`		`- $envPairs[] = $k.'='.$v;`
	`334`	`+ if (false !== $v) {`
	`335`	`+ $envPairs[] = $k.'='.$v;`
	`336`	`+ }`
`335`	`337`	`}`
`336`	`338`	`}`
`337`	`339`