while循环后显示结果计数

Question

我试图显示whileloop以外的点。我正在获取像这样的结果。

Facebook 
Twitter,Facebook,Instagram,Youtube 
Facebook 
Facebook 

它从每一行提取Facebook并最终计数次数。

<?php 
    $q = "select * FROM users"; 
    $r = mysql_query($q); 
    $total = mysql_num_rows($r); 

    while($row = mysql_fetch_assoc($r)) { 
    $fb= $row['social']; 
    $dbreq = implode(',',explode(',', $fb)); 
    $fa=array("Twitter,",",Instagram,","Youtube"); 
    $newstring = str_replace($fa, "", $dbreq); 

    echo $points= count(explode(',', $newstring)); 
    } 
?> 

Answer 1

请尝试这样，

<?php 
$q = "select * FROM users"; 
$r = mysql_query($q); 
$total = mysql_num_rows($r); 
$cnt =0 ; 
while($row = mysql_fetch_assoc($r)) { 
$fb= $row['social']; 
if (strpos($fb,'facebook') !== false) { 
    $cnt++; 
} 
} 
echo "TOTAL:".$cnt; 
    ?>