PHP progress bar

When making a progress bar in PHP, you can use the ob_flush(); flush(); two functions to refresh the cache and send the information in the cache to the browser. But be aware that many servers will accumulate about 4k of content before sending it, so you can force a refresh by filling in spaces (echo str_pad('', 4096);).

<code><span>public</span><span><span>function</span><span>insert</span><span>(<span>$data</span>,<span>$html</span>)</span>
    {</span><span>echo</span><span>$html</span>;
        <span>$i</span> = <span>0</span>;
        <span>$sum</span> = count(<span>$data</span>);
        <span>if</span>(<span>$sum</span> == <span>0</span>){
            <span>echo</span><span>"数据出错"</span>;
            <span>return</span>;
        } 
        <span>$noped</span> = <span>0</span>;
        <span>try</span> { 

               <span>foreach</span>(<span>$data</span><span>as</span><span>$v</span>){ 
                    <span>$tdata</span>[] = <span>$v</span>;
                    <span>$i</span>++;
                    <span>if</span>( <span>$i</span>%<span>20</span>==<span>0</span> || <span>$i</span>==<span>$sum</span>-<span>1</span>){ 
                        <span>$ret</span> = <span>$this</span>->btrManger_m->inserts100(<span>$tdata</span>); <span>//一次插入100条</span><span>if</span>(<span>$ret</span>){ 
                            <span>$s</span> = <span>$i</span>/<span>$sum</span>*<span>100</span>;
                            <span>echo</span> str_pad(<span>''</span>, <span>4096</span>); <span>//填充缓存</span><span>echo</span><span>"<script> setProgressBar("</span>.(<span>$s</span>).<span>");</script>"</span>;
                            ob_flush();
                            flush();
                        }
                        <span>else</span>{ <span>//出错 终止</span><span>break</span>;
                        }
                        <span>$tdata</span> = <span>array</span>();
                    } 
            }
        } <span>catch</span> (<span>Exception</span><span>$e</span>) {
            <span>echo</span><span>$e</span>; 
            <span>return</span>;
        }
        <span>$resultStr</span> = <span>"'共计"</span>.<span>$sum</span>.<span>"条记录,成功操作完成"</span>.<span>$i</span>.<span>"条！'"</span>;
        <span>echo</span><span>"<script> setText("</span>.<span>$resultStr</span>.<span>");</script>"</span>;
    }</code>

The front-end is implemented using bootstrap’s progress bar:

<code><span><span>function</span><span>setProgressBar</span><span>(width)</span>{</span>
    str=width+<span>"%"</span>;
    $(<span>'.progress-bar'</span>).attr(<span>'aria-valuenow'</span>,str).css(<span>'width'</span>,str) .html(str);
    <span>if</span>(width == <span>100</span>){
        $(<span>'#idInsertResult'</span>).html(<span>"数据操作完成!"</span>);
    }
}</code>

<code><<span>div</span><span>class</span>=<span>"progress"</span>>
    <<span>div</span><span>class</span>=<span>"progress-bar progress-bar-info progress-bar-striped active"</span> role=<span>"progressbar"</span> aria-valuenow=<span>"0"</span> aria-valuemin=<span>"1"</span> aria-valuemax=<span>"100"</span> style=<span>"width: 3%;"</span>>
               <span>0</span>%
    </<span>div</span>>
</<span>div</span>></code>

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The above introduces the PHP progress bar, including aspects of the content. I hope it will be helpful to friends who are interested in PHP tutorials.