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if($rows === false)     // true if MySQL error, false if row count zero


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php »ù´¡±Ê¼Ç operators

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//php avancé 5 example
$a = 'hello';
$a .= 'world';
$table = 'users';
$id = 5;
$sql = 'SELECT * from'.$table. "WHERE ID = '$id'";
//date() GÏÔʾ24СʱµÄ¸ñʽ£¬iÏÔʾ·ÖÖÓ
echo 'il est'.date( ......

php »ù´¡±Ê¼Ç array

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<?php
// simple assgin the values
$arr1 = array(12 => 10, 'sjg' => 'yaya');
echo $arr1[12].'<br>'; // 10
echo $arr1['sjg']."<br>"; //yaya
echo "wo ai ni !<p> ......

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