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run code in 150+ php & hhvm versions
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<?php $unicodeChar = '\uc3ba'; $string = json_decode('"'.$unicodeChar.'"'); echo "String is $string \n"; $result = preg_match_all( '/\X/u' , $string , $matches , PREG_SET_ORDER ); echo "Result is :".$result."\n"; var_dump($matches); exit(0);
Output for 5.2.2 - 7.1.0
String is 쎺 Result is :1 array(1) { [0]=> array(1) { [0]=> string(3) "쎺" } }
Output for 5.2.1
String is \uc3ba Result is :6 array(6) { [0]=> array(1) { [0]=> string(1) "\" } [1]=> array(1) { [0]=> string(1) "u" } [2]=> array(1) { [0]=> string(1) "c" } [3]=> array(1) { [0]=> string(1) "3" } [4]=> array(1) { [0]=> string(1) "b" } [5]=> array(1) { [0]=> string(1) "a" } }
Output for 5.2.0
String is Result is :0 array(0) { }
Output for 5.0.0 - 5.1.6
<br /> <b>Fatal error</b>: Call to undefined function json_decode() in <b>/in/IGJA7</b> on line <b>4</b><br />
Process exited with code 255.
Output for 4.4.5 - 4.4.9
<br /> <b>Fatal error</b>: Call to undefined function: json_decode() in <b>/in/IGJA7</b> on line <b>4</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.4.4
<br /> <b>Fatal error</b>: Call to undefined function: json_decode() in <b>/in/IGJA7</b> on line <b>4</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1
<br /> <b>Fatal error</b>: Call to undefined function: json_decode() in <b>/in/IGJA7</b> on line <b>4</b><br />