A Simple Method to Implement Multi-Keyword Search Using PHP MySQL LIKE

Or called, word segmentation retrieval database

$res = mysql_query("select * from peter where id like '%Chinese herbal medicine%' and '%6%' //This is wrong to write;

$res = mysql_query("select * from peter where id like '%Chinese herbal medicine%' or '%6%' //And this is correct; strange~

$res = mysql_query("select * from peter where id like '%Chinese herbal medicine%' and id like '%6%' //This is correct to write;

$res = mysql_query("select * from peter where id like '%Chinese herbal medicine%' or id like '%6%' //This is all correct to write;

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