摘要:
$dates = prDates('20180101', '20200101', 'y'); var_dump($dates); $dates = prDates('20190101', '20200101', 'm'); var_dump($dates); $dates = prDates('20 阅读全文
摘要:
for 只能遍历纯索引类型数组 $a = range(0, 5); for ($i = 0; $i < count($a); $i++) { p($a[$i]); } foreach 可以遍历任何类型的数组,遍历前会对数组进行reset $a = range(0, 5); $a['f1'] = 6; 阅读全文
摘要:
运算符 $a = true ? 0 : true ? 1 : 2;// (true ? 0 : true) ? 1 : 2 = 2 $a = 1; $b = 2; $a = $b += 3; // $a = ($b += 3) -> $a = 5, $b = 5 逻辑或的优先级大于= $b = fa 阅读全文
摘要:
class TestController extends Controller { function actionIndex() { $temp = '';//空字符串 $this->test_false($temp); $temp = '0';//字符串0 $this->test_false($t 阅读全文