Use symtable lookup for arrays in array_column

Author: nikic

ext/standard/array.c

@@ -3534,7 +3534,7 @@ static inline zval *array_column_fetch_prop(zval *data, zval *name, zval *rv)
 		}
 	} else if (Z_TYPE_P(data) == IS_ARRAY) {
 		if (Z_TYPE_P(name) == IS_STRING) {
-			prop = zend_hash_find(Z_ARRVAL_P(data), Z_STR_P(name));
+			prop = zend_symtable_find(Z_ARRVAL_P(data), Z_STR_P(name));
 		} else if (Z_TYPE_P(name) == IS_LONG) {
 			prop = zend_hash_index_find(Z_ARRVAL_P(data), Z_LVAL_P(name));
 		}

ext/standard/tests/array/array_column_numeric_string_key.phpt

@@ -0,0 +1,23 @@
+--TEST--
+array_column() treats numeric string keys as usual
+--FILE--
+<?php
+
+$array = [[42 => 'a'], [42 => 'b']];
+var_dump(array_column($array, 42));
+var_dump(array_column($array, "42"));
+
+?>
+--EXPECT--
+array(2) {
+  [0]=>
+  string(1) "a"
+  [1]=>
+  string(1) "b"
+}
+array(2) {
+  [0]=>
+  string(1) "a"
+  [1]=>
+  string(1) "b"
+}