<?php
class obj implements Serializable {
public function serialize() {
return 123;
}
public function unserialize($data) {
}
}
$obj = new obj;
$ser = serialize($obj);
Deprecated: obj implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /in/DebH8 on line 2
Fatal error: Uncaught Exception: obj::serialize() must return a string or NULL in /in/DebH8:11
Stack trace:
#0 /in/DebH8(11): serialize(Object(obj))
#1 {main}
thrown in /in/DebH8 on line 11
Process exited with code 255.
Fatal error: Uncaught Exception: obj::serialize() must return a string or NULL in /in/DebH8:11
Stack trace:
#0 /in/DebH8(11): serialize(Object(obj))
#1 {main}
thrown in /in/DebH8 on line 11
Process exited with code 255.
Fatal error: Uncaught exception 'Exception' with message 'obj::serialize() must return a string or NULL' in /in/DebH8:11
Stack trace:
#0 /in/DebH8(11): serialize(Object(obj))
#1 {main}
thrown in /in/DebH8 on line 11
Process exited with code 255.
Output for 5.0.5
Fatal error: Interface 'Serializable' not found in /in/DebH8 on line 2
Process exited with code 255.
Output for 5.0.0 - 5.0.4
Fatal error: Class 'Serializable' not found in /in/DebH8 on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/DebH8 on line 2
Process exited with code 255.