Onblur/onfocus不在里面工作php

Question

我想添加onfocus/onblur事件到一个窗体，但不知何故我没有得到它的工作。我认为这与逃避报价有关，但我尝试了几种方法，但都没有成功。我的代码是这样的：在你的onblur串

echo '<input type="password" id="'.$field->name.'" name="'.$field->name.'" size="30" class="inputbox" placeholder="'.$field->title.'" 
       onfocus="this.placeholder = ''" onblur="this.placeholder = '.$field->title.'" 
       />'."\n"; 
       break; 

Answer 1

你缺少报价：

<?php 
echo '<input type="password" id="' . $field->name . '" name="' . $field->name . '" size="30" class="inputbox" placeholder="' . $field->title . '" onfocus="this.placeholder = ''" onblur="this.placeholder = \'' . $field->title . '\'" />'."\n";