<?php
/**
 * チェーンクラス？数珠繋ぎクラス？関数の作り方．
 */
class ChainClass{
    public $value = 0;

    /**
     * 加算関数
     */
    public function add($value)
    {
        $this->value = $this->value + $value;
        return $this;
    }

    /**
     * 乗算関数
     */
    public function multiplication($value)
    {
        $this->value = $this->value * $value;
        return $this;
    }

    /**
     * 解を表示する関数
     */
    public function answer()
    {
        printf('答えは%dです',$this->value);
        return $this;
    }
}

(new ChainClass)->add(2)->add(3)->multiplication(10)->add(5)->answer();

<?php
//testClass.php
trait testClass {
    public function Hello(){
        return 'Hello';
    }
}

<?php
//test.php
require './testClass.php';
class test1{
    use testClass;
    public function run (){
        print $this->Hello().PHP_EOL;
    }
}
class test2{
    use testClass;
    protected function Hello(){
        return 'Good night';
    }
    public function run (){
        print $this->Hello().PHP_EOL;
    }
}

(new test1)->run();
(new test2)->run();

class User extends Model {

    public function getFirstNameAttribute($value) {
        return str_replace('tanaka', 'yamada', $this->first_name);
    }

}

	// browser window scroll (in pixels) after which the "back to top" link is shown
	var offset = 300,
		//browser window scroll (in pixels) after which the "back to top" link opacity is reduced
		offset_opacity = 1200,
		//duration of the top scrolling animation (in ms)
		scroll_top_duration = 700,
		//grab the "back to top" link
		$back_to_top = $('.cd-top');

	//hide or show the "back to top" link
	$(window).scroll(function(){
		( $(this).scrollTop() > offset ) ? $back_to_top.addClass('cd-is-visible') : $back_to_top.removeClass('cd-is-visible cd-fade-out');
		if( $(this).scrollTop() > offset_opacity ) { 
			$back_to_top.addClass('cd-fade-out');
		}
	});

document.getElementById("example").addEventListener("input",function(){
    main()
})
document.getElementById("example").addEventListener("input",main);

function main(){
    if(this.value){
        console.log(this);
    }
}

$(function () {
	$(".alert.alert-danger").html("未記入です");
	$("input").keyup(function () {
		if ($(this).val()) {
			$(".alert.alert-danger").eq($("input").index(this)).html($(this).val());
		} else {
			$(".alert.alert-danger").eq($("input").index(this)).html("未記入です");
		}
	});
	$("input").blur(function () {
		if ($(this).val()) {
			$(".alert.alert-danger").eq($("input").index(this)).html($(this).val());
		} else {
			$(".alert.alert-danger").eq($("input").index(this)).html("未記入です");
		}
	});
	$("input").focus(function () {
		if ($(this).val()) {
			$(".alert.alert-danger").eq($("input").index(this)).html($(this).val());
		} else {
			$(".alert.alert-danger").eq($("input").index(this)).html("未記入です");
		}
	});
});

<?php
//5分刻みに対して有効な無限クローン 処理が負荷の場合どうなるかは知りません。
date_default_timezone_set('Asia/Tokyo');
class cron{

    public function d_m($obj)
    {
            if($obj->m==="*")return true;
            if(preg_match("/,/",$obj->m))return $this->comma($obj->m,date("m"));
            if((int)$obj->m === (int)date("m"))return true;

            return false;
    }

    public function d_d($obj)
    {
            if($obj->d==="*")return true;
            if(preg_match("/,/",$obj->d))return $this->comma($obj->d,date("d"));
            if((int)$obj->d === (int)date("d"))return true;

            return false;
    }

    public function d_H($obj)
    {
            if(preg_match("/\*\/[0-9]{1,2}/",$obj->H)){
                $H = explode("/",$obj->H);
                if((int)$H[1]>0 && ((int)date("H") % (int)$H[1])===0)return true;
            }else{
                if($obj->H==="*")return true;
                if(preg_match("/,/",$obj->H))return $this->comma($obj->H,date("H"));
                if((int)$obj->H === (int)date("H"))return true;

            }
            return false;
    }

    public function d_i($obj)
    {
            if(preg_match("/\*\/[0-9]{1,2}/",$obj->i)){
                $i = explode("/",$obj->i);
                if((int)$i[1]>0 && ((int)date("i") % (int)$i[1])===0)return true;
            }else{
                if($obj->i==="*")return true;
                if(preg_match("/,/",$obj->i))return $this->comma($obj->i,date("i"));
                if((int)$obj->i === (int)date("i"))return true;

            }
            return false;
    }

    //曜日 0=日曜日 6=土曜日
    public function d_w($obj)
    {
            if((int)$obj->w[date("w")]===1)return true;
            return false;
    }

    public  function comma($c="",$t=""){
        if($c==="")return false;
        if($t==="")return false;
        $flg = false;
        foreach(explode(",",$c) as $cc){
            if((int)$cc===(int)$t)$flg = true;
        }
        return $flg;
    }


    public function d_command($obj){
        if($obj->command){
            exec($obj->command . " > /dev/null &");
        }
        return true;
    }

}
if ($argv[1]) {
   $filename = $argv[1];
    if(is_file($filename)){
        $jsn = json_decode(file_get_contents($filename));
        $cron = new cron();
        try {
            foreach($jsn as $obj){
                if($cron->d_m($obj)){
                    if($cron->d_d($obj)){
                        if($cron->d_H($obj)){
                            if($cron->d_i($obj)){
                                if($cron->d_w($obj)){
                                    $cron->d_command($obj);//波動拳{{{{
                                }
                            }
                        }
                    }
                }
            }
        } catch (\Throwable $th) {
            print $th->getMessage();
        }
    }
}