Usage code example of php join function

The

join() function returns a string composed of array elements. The

join() function is an alias of the implode() function.

Note: The join() function accepts two parameter orders. However, due to historical reasons, explode() does not work. You must ensure that the separator parameter comes before the string parameter.

Grammar

join(separator,array)

This article mainly introduces the application of php joinfunction. Friends in need can refer to it. $key = array();

$val = array(); 
foreach ($_POST as $k=>$v) 
{ 
$key[] = '`'.strip_tags(mysql_real_escape_string(trim($k))).'`'; 
$val[] = "'".strip_tags(mysql_real_escape_string(trim($v)))."'"; 
} 

$keys = join(",",$key); 
$vals = join(",",$val);

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