Free-Abc智能本文实例讲述了PHP实现查询两个数组中不同元素的方法。分享给大家供大家参考，具体如下：
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<?php
$a = array(
“max_allow_dialogs”,
“livechat_server_ip”,
“livechat_service_time”,
“abort_zh_cn”,
“abort_zh_tw”,
“abort_en_usa”,
“welcome_zh_cn”,
“welcome_zh_tw”,
“welcome_en_usa”,
“timeout_zh_cn”,
“timeout_zh_tw”,
“timeout_en_usa”,
“absence_zh_cn”,
“absence_zh_tw”,
“absence_en_usa”
);
$b = array(
“max_allow_dialogs”,
“livechat_server_ip”,
“livechat_service_time”,
“abort_zh_cn”,
“abort_zh_tw”,
“abort_en_usa”,
“welcome_zh_cn”,
“welcome_zh_tw”,
“welcome_en_usa”,
“timeout_zh_cn”,
“timeout_zh_tw”,
“timeout_en_usa”,
);
$c = array_merge(array_diff($a,$b),array_diff($b,$a));
print_r($c);
?>
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结果：
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Array
(
[0] => absence_zh_cn
[1] => absence_zh_tw
[2] => absence_en_usa
)
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