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php数组输出的有关问题

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Release: 2016-06-13 10:13:19
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php数组输出的问题

PHP code
<!--Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->foreach($list as $value){  $this->output .= $value['q_username'];//a  $this->output .= print_r($value);// b}
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两个输出语句,a输出空白,b用print_r的方法可以输出数组的结构,有值,名称也是q_username

为啥就输不出来呢

------解决方案--------------------
PHP code
foreach($list as $key=>$value){  $this->output .= $value['q_username'];//a  $this->output .= print_r($value);// b}<br><font color="#e78608">------解决方案--------------------</font><br>把第二行前面的 $this->output .=去掉看看。<br>foreach($list as $value) {  <br>    $this->output .= $value['q_username'];//a<br>    print_r($value); // b<br>  }  <br>echo  $this->output;<br><font color="#e78608">------解决方案--------------------</font><br>
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探讨

你的 $value 是二维数组(#2)
用 $this->output .= $value['q_username']; 当然是输出不了的

------解决方案--------------------
探讨

引用:

你的 $value 是二维数组(#2)
用 $this->output .= $value['q_username']; 当然是输出不了的


咦...还是老大眼睛好使啊
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