运算符与错误控制符@
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//相等比较 > 逻辑与 && > 逻辑或 || > 赋值
echo $a = true || $b == 3 // true
echo $b = false && $a==1 //false
//逻辑与 && > 逻辑或 || > 赋值 > and > or
echo $a = false || true; // true
echo $b = false or true // true$a = 0;
$b = 0;
if ($a = 3 > 0 || $b = 3 > 0)
{
$a++;
$b++;
echo $a. "\n";
echo $b. "\n";
}boolean true
int 0
1 1Error_Reporting(E_Error | e_Warning | e_Parse | e_Notice);
error_reporting(E_ALL ^ E_NOTICE);