$a =1;
$b = 0;
if (isset( $a )){
$b =1;
print ( $b . "\n" );
} if ( $b !=0){
print ( $b . "\n" );
} |
简化后:
$a =1;
$b = 0;
isset( $a ) && ( $b =1) && print ( $b . "\n" );
$b == 0 || print ( $b . "\n" );
|
明显代码看起来更加整齐,更加简单!
$a = 1;
if ( $a = 1){
echo '$a == 1' ;
} |
之后:
$a = 1;
if (1 = $a ){
echo '$a == 1' ;
} |
明显,常量放在前面的话,编译器就能判断错误。
正规格式:
$a = 1;
if (1 == $a ){
echo '$a == 1' ;
} |
/*错误码:4,5,7,8的时候返回状态1,错误码是1,3,6返回状态2*/ $error = 4;
$state = 0;
if ( $error == 4 || $error == 5 || $error == 7 || $error == 8){
$state = 1;
} if ( $error == 1 || $error == 3 || $error == 6){
$state = 2;
} echo "$state \n" ;
|
/*错误码:4,5,7,8的时候返回状态1,错误码是1,3,6返回状态2*/ $error = 4;
$state = 0;
$arr = array (4 => 1, 5 => 1, 7 => 1, 8 => 1, 1 => 2, 3 => 2, 6 => 2);
isset( $arr [ $error ]) && ( $state = $arr [ $error ]);
echo "$state \n" ;
|
明显代码更加凝练,更加清楚,更易懂,速度也更快!