PHP9 - プログラム倉庫

<?php

$fp = fopen("tss.txt", "r");
while ($line = fgets($fp)) {
$data=$line;
}
fclose($fp);
$x = explode( ">",$data);

$num=count($x);
$numx=$num/2;

For($n=0;$n<$num;$n++){
$x[$n]=str_replace("<","",$x[$n]);
}

For($n=0;$n<$numx;$n++){
$sx=2*$n;
$tsecode[$n]=$x[$sx];
$com[$n]=$x[$sx+1];
}

For($nx=1;$nx<50;$nx++){

$dn="data/";
$dm=$tsecode[$nx];
$ds=".txt";
$dn=$dn.$dm.$ds;

$fp = fopen($dn, "r");
while ($line = fgets($fp)) {
$data=$line;
}
fclose($fp);
$x = explode( ">",$data);

$num=count($x);
$numx=$num/10;

For($n=1;$n<$num;$n++){
$x[$n]=str_replace("<","",$x[$n]);
}

For($n=1;$n<$numx;$n++){
$sx=10*($n-1);
$tsecode[$n]=$x[$sx];
$year[$n]=$x[$sx+1];
$month[$n]=$x[$sx+2];
$day[$n]=$x[$sx+3];
$oprice[$n]=$x[$sx+4];
$hprice[$n]=$x[$sx+5];
$lprice[$n]=$x[$sx+6];
$cprice[$n]=$x[$sx+7];
$volume[$n]=$x[$sx+8];
$rprice[$n]=$x[$sx+9];
}

require("calldata.php");

$exe= mysql_query($sql,$link);
for ($n=1;$n<$numx;$n++){
$a1=$tsecode[$n];
$a2=$year[$n];
$a3=$month[$n];
$a4=$day[$n];
$a5=$oprice[$n];
$a6=$hprice[$n];
$a7=$lprice[$n];
$a8=$cprice[$n];
$a9=$volume[$n];
$a10=$rprice[$n];
$sql = "insert into tse values($a1,$a2,$a3,$a4,$a5,$a6,$a7,$a8,$a9,$a10)";
$exe= mysql_query($sql,$link);
}
$close_flag = mysql_close($link);

print($com[$nx]);
print('<BR>');

}












?>