Phpexcel export Emoji symbol error

original text ：http://blog.csdn.net/SakuraLLj/article/details/72823765

phpexcel Export user data into excel when , If the nickname contains an expression , It can lead to incomplete data .

Filter or replace emoji. because emoji adopt json_encode after , Most of them are u[ed] The code at the beginning , So first, the nickname json_encode Then use regular filtering or replace with *, The following is the relevant code ：

$value = json_encode($value);
$value = preg_replace("/\\\u[ed][0-9a-f]{3}\\\u[ed][0-9a-f]{3}/","*",$value);// Replace with *
$value = json_decode($value);