Online PHP editor | output for FPfvj

Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Warning: Undefined variable $new in /in/FPfvj on line 2 Warning: Undefined variable $buf in /in/FPfvj on line 2 Deprecated: preg_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated in /in/FPfvj on line 2
Output for 8.0.0 - 8.0.30: Warning: Undefined variable $new in /in/FPfvj on line 2 Warning: Undefined variable $buf in /in/FPfvj on line 2
Output for 5.1.3 - 5.1.6, 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 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33: Notice: Undefined variable: new in /in/FPfvj on line 2 Notice: Undefined variable: buf in /in/FPfvj on line 2
Output for 7.3.32 - 7.3.33, 7.4.26
Output for 5.1.0 - 5.1.2: Notice: Undefined variable: new in /in/FPfvj on line 2 Notice: Undefined variable: buf in /in/FPfvj on line 2 Notice: Undefined variable: counter in /in/FPfvj on line 2
Output for 5.0.4 - 5.0.5: Notice: Undefined variable: new in /in/FPfvj on line 2 Notice: Undefined variable: buf in /in/FPfvj on line 2 Notice: Undefined variable: counter in /in/FPfvj on line 2 Warning: Wrong parameter count for preg_replace() in /in/FPfvj on line 2
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3: Notice: Undefined variable: new in /in/FPfvj on line 2 Notice: Undefined variable: buf in /in/FPfvj on line 2 Notice: Undefined variable: counter in /in/FPfvj on line 2 Warning: Wrong parameter count for preg_replace() in /in/FPfvj on line 2