8行目に<a></a>をつけたい
ちょっと質問の体をなしていないですが拡大解釈して
PHP
1<table>
2<tbody>
3<?php
4$titles=["t1","t2","t3","t4","t5","t6","t7","t8","t9","t10",];
5$prices=["p1","p2","p3","p4","p5","p6","p7","p8","p9","p10",];
6$makers=["m1","m2","m3","m4","m5","m6","m7","m8","m9","m10",];
7$release=["r1","r2","r3","r4","r5","r6","r7","r8","r9","r10",];
8$urls=["u1","u2","u3","u4","u5","u6","u7","u8","u9","u10",];
9$count=1;
10foreach ($titles as $key => $line){
11if($count==8) $line="<a href=\"#\">{$line}</a>";
12print <<<eof
13 <tr>
14 <td>{$line}</td>
15 <td>{$prices[$key]}円</td>
16 <td>{$makers[$key]}</td>
17 <td>{$release[$key]}</t>
18 <td>{$urls[$key]}</t>
19 </tr>
20eof;
21$count++;
22}
23?>
24</tbody>
25</table>
もし$keyが0から始まる続きの整数が担保されているなら
$countを利用せず$keyが7であることを利用してもよいでしょう
念の為
PHP
1<table>
2<tbody>
3<?php
4$titles=["t1","t2","t3","t4","t5","t6","t7","t8","t9","t10",];
5$prices=["p1","p2","p3","p4","p5","p6","p7","p8","p9","p10",];
6$makers=["m1","m2","m3","m4","m5","m6","m7","m8","m9","m10",];
7$release=["r1","r2","r3","r4","r5","r6","r7","r8","r9","r10",];
8$urls=["u1","u2","u3","u4","u5","u6","u7","u8","u9","u10",];
9foreach ($titles as $key => $line){
10print <<<eof
11 <tr>
12 <td>{$line}</td>
13 <td>{$prices[$key]}円</td>
14 <td>{$makers[$key]}</td>
15 <td>{$release[$key]}</t>
16 <td><a href="{$urls[$key]}">{$urls[$key]}</a></t>
17 </tr>
18eof;
19}
20?>
21</tbody>
22</table>