我们如何将输入类型分配给变量

Question

Here I am having an doubt,i know it doesn't look relevant to you people but i need to get it. The thing is can we assign an input type to an variable like this.

<?php  $option  = '<input type="text" name="project_id" id="pr_id"/>';
var_dump($option);?>

Here pr_id contains an value and a thinking to assign it to an variable

Answer 1

Sure, you can assign anything! Here's an Input object I just created, have a look at this:

<?php

class Input
{
    /** @var array $attributes */
    private $attributes = [];

    /**
     * @param $key
     * @return mixed|string
     */
    public function getAttribute($key)
    {
        return isset($this->attributes[$key]) ? $this->attributes[$key] : null;
    }

    /**
     * @param $key
     * @param $value
     * @return $this
     */
    public function setAttribute($key, $value)
    {
        $this->attributes[$key] = $value;
        return $this;
    }

    /**
     * @param array $attributes
     * @return $this
     */
    public function setAttributes(array $attributes)
    {
        $this->attributes = $attributes;
        return $this;
    }

    /**
     * @return array
     */
    public function getAttributes()
    {
        return $this->attributes;
    }

    public function render()
    {
        $html =  '<input ';
        foreach ($this->getAttributes() as $key => $val) {
            $html .= $key.'="'.$val.'" ';
        }
        $html .= '/>';
        return $html;
    }
}

So you can now generate an Input with the following code:

$input = new Input();
$input->setAttribute('id', 'pr_id')
      ->setAttribute('name', 'project_id')
      ->setAttribute('type', 'text');

echo $input->render();

Which outputs:

<input id="pr_id" name="project_id" type="text" />

Have a play with it here: https://3v4l.org/sAiWd