<?php
$arr = array(
"key1"=>"value1",
"key2"=>null,
"key3"=>array(
"subkey1"=>null,
"subkey2"=>"subvalue2"),
"key4"=>null);
echo json_encode(replace_null_with_empty_string($arr));
function replace_null_with_empty_string($array)
{
foreach ($array as $key => $value)
{
if(is_array($value))
$array[$key] = replace_null_with_empty_string($value);
else
{
if (is_null($value))
$array[$key] = "";
}
}
return $array;
}
- Output for 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.30, 8.2.0 - 8.2.25, 8.3.0 - 8.3.14, 8.4.1
- {"key1":"value1","key2":"","key3":{"subkey1":"","subkey2":"subvalue2"},"key4":""}
- Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
- Fatal error: Call to undefined function json_encode() in /in/7uXTL on line 10
Process exited with code 255. - Output for 4.4.5 - 4.4.9
- Fatal error: Call to undefined function: json_encode() in /in/7uXTL on line 10
Process exited with code 255. - Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
- Fatal error: Call to undefined function: json_encode() in /in/7uXTL on line 10
Process exited with code 255. - Output for 4.3.0 - 4.3.1
- Fatal error: Call to undefined function: json_encode() in /in/7uXTL on line 10
preferences:
85.75 ms | 409 KiB | 5 Q