Question

我有一个问题是使用php计算foreach中的总记录。

我的代码在这里

$User_Line=@mysql_fetch_array(mysql_query("select * from tb_user where user_login_id='$_SESSION[SEEKER_ID]'"));
$userskill=explode(",",$User_Line['user_skills_id']);
foreach($userskill as $skill) 
{
   $tb_job=mysql_query("select * from tb_job where job_keyskills like '%$skill%'");
   $tb_job2=mysql_fetch_array($tb_job);
   echo "TOTAL=".$value=mysql_num_rows($tb_job);
}

目前的结果是TOTAL=12 TOTAL=4 TOTAL=0 但它应该像TOTAL = 16

请帮帮我

Answer 1

您是否只是尝试对变量中的每个值求和？

$User_Line=@mysql_fetch_array(mysql_query("select * from tb_user where user_login_id='$_SESSION[SEEKER_ID]'"));
$userskill=explode(",",$User_Line['user_skills_id']);
$total = 0;
foreach($userskill as $skill) 
{    
    $tb_job=mysql_query("select * from tb_job where job_keyskills like '%$skill%'");
    $tb_job2=mysql_fetch_array($tb_job);
    $total +=  mysql_num_rows($tb_job);        
}
echo "TOTAL=".$total;

Answer 2

在循环外定义变量$total

$total = 0;

foreach($userskill as $skill) 
{
...
$total = $total + $value=mysql_num_rows($tb_job); // add the $value to $total
}

echo $total;

Answer 3

试试这个

$User_Line=@mysql_fetch_array(mysql_query("select * from tb_user where user_login_id='$_SESSION[SEEKER_ID]'"));
$userskill=explode(",",$User_Line['user_skills_id']);

$Total=0;

foreach($userskill as $skill) 
{
   $tb_job=mysql_query("select * from tb_job where job_keyskills like '%$skill%'");
   $tb_job2=mysql_fetch_array($tb_job);
   $value=mysql_num_rows($tb_job);
   $Total=$Total+$Value;
}
echo "TOTAL=".$Total;

如何使用php计算foreach内的总记录？

3 个答案: