Online PHP editor | output for vTHVj

Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: string(4) "🚁" Warning: Undefined variable $text in /in/vTHVj on line 10 Deprecated: mb_convert_encoding(): Passing null to parameter #1 ($string) of type array|string is deprecated in /in/vTHVj on line 10 Deprecated: mb_convert_encoding(): Handling HTML entities via mbstring is deprecated; use htmlspecialchars, htmlentities, or mb_encode_numericentity/mb_decode_numericentity instead in /in/vTHVj on line 10 string(0) "" string(4) "🚁"
Output for 8.1.0 - 8.1.28: string(4) "🚁" Warning: Undefined variable $text in /in/vTHVj on line 10 Deprecated: mb_convert_encoding(): Passing null to parameter #1 ($string) of type array|string is deprecated in /in/vTHVj on line 10 string(0) "" string(4) "🚁"
Output for 8.0.0 - 8.0.30: string(4) "🚁" Warning: Undefined variable $text in /in/vTHVj on line 10 string(0) "" string(4) "🚁"
Output for 5.6.7 - 5.6.21, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33: string(4) "🚁" Notice: Undefined variable: text in /in/vTHVj on line 10 string(0) "" string(4) "🚁"
Output for 7.3.32 - 7.3.33, 7.4.26: string(4) "🚁" string(0) "" string(4) "🚁"
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35: string(8) "ð" Notice: Undefined variable: text in /in/vTHVj on line 10 string(0) "" string(11) "ð"
Output for 5.0.4 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29: string(8) "ð" Notice: Undefined variable: text in /in/vTHVj on line 10 string(0) "" string(37) "Ã°Â�Â�Â�"
Output for 4.3.4 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3: string(8) "ð" Notice: Undefined variable: text in /in/vTHVj on line 10 string(0) "" string(37) "Ã°Â�Â�Â�"
Output for 4.3.0 - 4.3.3: string(8) "ð" Notice: Undefined variable: text in /in/vTHVj on line 10 bool(false) string(37) "Ã°Â�Â�Â�"