PHP90 - プログラム倉庫

<?php
require("calldata.php");
$sql = "SELECT * FROM eli36";
$result = mysql_query($sql, $link);
$n=1;
while( $row = mysql_fetch_row( $result ) ){
$matrix[$n][1] = $row[0];
$matrix[$n][2]  =$row[1];  
$n=$n+1;
}
$maxn=$n;
for ($n=1; $n < $maxn; $n++) {
$byear =$matrix[$n][1];
$mwage[$byear] = $matrix[$n][2];  
}

$sql = "SELECT * FROM eli86";
$result = mysql_query($sql, $link);
$n=1;
while( $row = mysql_fetch_row( $result ) ){
$matrix[$n][1] = $row[0];
$matrix[$n][2]  =$row[1];  
$n=$n+1;
}
$maxn=$n;
for ($n=1; $n < $maxn; $n++) {
$byear =$matrix[$n][1];
$mwage[$byear] = $matrix[$n][2];  
}

$sql = "SELECT * FROM eli37";
$result = mysql_query($sql, $link);
$n=1;
while( $row = mysql_fetch_row( $result ) ){
$matrix[$n][1] = $row[0];
$matrix[$n][2]  =$row[1];  
$n=$n+1;
}
$maxn=$n;
for ($n=1; $n < $maxn; $n++) {
$byear =$matrix[$n][1];
$fwage[$byear] = $matrix[$n][2];  
}

$sql = "SELECT * FROM eli87";
$result = mysql_query($sql, $link);
$n=1;
while( $row = mysql_fetch_row( $result ) ){
$matrix[$n][1] = $row[0];
$matrix[$n][2]  =$row[1];  
$n=$n+1;
}
$maxn=$n;
for ($n=1; $n < $maxn; $n++) {
$byear =$matrix[$n][1];
$fwage[$byear] = $matrix[$n][2];  
}

$sql = "truncate eli90";
$exe= mysql_query($sql,$link);
for ($byear=1950;$byear<2035;$byear++){
$x=$mwage[$byear];
$y=$fwage[$byear];
$sql = "insert into eli90 values($byear,$x,$y)";
$exe= mysql_query($sql,$link);
}
$close_flag = mysql_close($link);
print("90 老齢賃金 計算終了");
?>