Arrays, if then statements in php (newbie)

[alby]

Sorry I did not post all the context before. Please need some help!

1. Currently this works ok with single rate values

2. Need modify the following script. Basically I need to convert the 1 rate value to multiple ones. Close to a shipping rate calculator. i.e, if amount is between 1 and 10 you pay $2.00, if between 10 and 20 you pay $3.00 and so on. Here is the actual function who process the information. Everything else works pretty much.

//here are the current options (might need to written differently)

<?php

$ship_options = array (
array ("texas", 0.0800),
array ("phoenix", 0.900)
);

?>
<script type="text/javascript">

function doTotals(form) {
var sub_tot_amt=0, tax_amt=0, g_tot_amt=0, admin_amt=0;
for (var i=0; i < <?php echo $num_products ?>; i++) {
var cur_field = form[ products + "qty" ];
if ( !isPosInt(form, cur_field, cur_field.value) ) return;
else sub_tot_amt += parseFloat(cur_field.value) parseFloat( form[ products + "price" ].value );
}
form.sub_tot.value = formatDecimal(sub_tot_amt, 2);
if ( form.sales_tax && form.sales_tax.checked ) {
tax_amt = <?php echo isset($cur_sales_tax)? $cur_sales_tax: 0 ?> form.grand_tot.value;
form.tax_amt.value = formatDecimal(tax_amt);
}


//start//Here I need to incorporate the values of the table rates and still make this to work.

	if (sub_tot_amt==0) g_tot_amt=0;
	else g_tot_amt = sub_tot_amt + admin_amt +
  <?php echo ( isset($ship_options) && !empty($ship_options) )? 'parseFloat(form.ship_amt.value)': 0 ?>;
	form.grand_tot.value = formatDecimal(g_tot_amt);

//stop

	if (sub_tot_amt==0) g_tot_amt=0;
	else g_tot_amt = tax_amt + g_tot_amt +
  <?php echo ( isset($admin_options) && !empty($admin_options) )? 'parseFloat(form.admin_amt.value)': 0 ?>;
	form.grand_tot.value = formatDecimal(g_tot_amt);

	if (sub_tot_amt==0) g_tot_amt=0;
	else g_tot_amt = admin_amt + g_tot_amt + 
  <?php echo ( isset($corp_options) && !empty($p_options) )? 'parseFloat(form.p_amt.value)': 0 ?>;
	form.grand_tot.value = formatDecimal(g_tot_amt);

}
</script>
------------------------------<--------------------------->-----------------------------------------

<?php
// Shipping options?
if ( isset($ship_options) && !empty($ship_options) ) {
$class = ($class == 'even')? 'odd': 'even';
$num_ship_opt = count($ship_options);
echo '<tr class="' . $class . '">
<td>Select a delivery option</td>
<td colspan="2">';
for ($row=0; $row < $num_ship_opt; $row++) {
$cur = $ship_options[$row];
echo '
<input type="radio" name="ship_opt" value="' . $cur[1] . '" tabindex="' . ($num_products + 1) . '"
onclick="inspectOptions(this,this.form.ship_amt,this.form)">' . $cur[0] . '<br>';
}
echo '
</td>
<td class="lbl">$<input class="cur" type="Text" name="ship_amt" size="8" value="0.00" readonly onfocus="this.blur()"></td>
</tr>
';
}
?>

Any help will be appreciated
Thank you

[Weedpacket]

if($amount<=10)
{   $rate = 2; // dollars
}
elseif($amount<=20)
{
    $rate = 3;
}
.....

That's making certain assumptions about what you mean, since what you wrote is ambiguous.

[bpat1434]

One thing to watch for is which side you are including. Are you right inclusive, or left inclusive? If you're right then what Weed wrote is correct, if you're left, then it's wrong.

<?php
// Left Inclusive
// 0 -> 9.999
if($amount<10){ $rate = 2; }

// 10 -> 19.999
elseif($amount<20){ $rate = 3; }


// Right Inclusive
// 0 -> 10.999
if($amount<=10){ $rate = 2; }

// 11 -> 20.999
elseif($amount<=20){ $rate = 3; }

?>

~Brett

[alby]

sorry weedpacket, i did post all the source before your suggestion.
basically i just need to learn how to make if then statements with variables i.e.,

where

$ship_options= Ups 1-10= 2 dollars
10-20= 3 dollars

                       Fdx 1-10=3 dollars
                               10-20= 3 dollars  

and later where if subtotal amounts is equal 3dollars then charge if ups selected 2dollars or fedex is the subtotal amount add up to 20 than charge 3 dollars.

if (sub_tot_amt==0) g_tot_amt=0;
else g_tot_amt = sub_tot_amt + admin_amt +
<?php echo ( isset($ship_options) && !empty($ship_options) )? 'parseFloat(form.ship_amt.value)': 0 ?>;
form.grand_tot.value = formatDecimal(g_tot_amt);

thank you for helping me