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Comment RSSPHP Display Mysql Rows with Column Limit
November 6, 2009 # 2:47 PM # Tutorials # 34 CommentsThis little script is very useful for having a set width of a table and displaying several rows organized in that table.
It is easy to just display a table full of rows for all the data in a mysql table. Something like this:
<?php
$sql = mysql_query("SELECT * FROM table1");
if(mysql_num_rows($sql) > 0){
echo "<table width=\"500\" border=\"1\" cellpadding=\"3\" cellspacing=\"0\">";
echo "<tr>";
while($row = mysql_fetch_array($sql)){
echo "<td width=\"100\" align=\"center\">".$row["col1"]."</td>";
}
echo "</tr></table>";
}
?>
This will grab all content of the mysql table and put the data from column 1 as a table column in this table.
Let’s say we have some images we want to display. The table is 500 pixels wide. So if your images are no larger than 100 pixels, you would want to display 5 columns per row in your table. This will give it good organization and flow in your webpage.
<?php
$sql = mysql_query("SELECT * FROM table1");
if(mysql_num_rows($sql) > 0){
echo "<table width=\"500\" border=\"1\" cellpadding=\"3\" cellspacing=\"0\">";
echo "<tr>";
for($i=0;$i<=mysql_num_rows($sql);$i=$i+1){
while($row = mysql_fetch_array($sql)){
$i++;
if($i%5==0){
// use the operator to find the remainder of $i / 5 (%)
// if the remainder is 0; it is a multiple of 5, so make a new row.
echo "<td width=\"100\" align=\"center\"><img src=\"".$row["col1"]."\" border=\"0\" style=\"max-width:100px\" /></td></tr><tr>";
} else {
echo "<td width=\"100\" align=\"center\"><img src=\"".$row["col1"]."\" border=\"0\" style=\"max-width:100px\" /></td>";
}
}
}
echo "</tr></table>";
}
?>
The two codes will appear like so:
Before Column Limit:
| Image 1 | Image 2 | Image 3 | Image 4 | Image 5 | Image 6 | Image 7 | Image 8 | Image 9 | Image 10 |
After Column Limit:
| Image 1 | Image 2 | Image 3 | Image 4 | Image 5 |
| Image 6 | Image 7 | Image 8 | Image 9 | Image 10 |
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