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==A division table==



<source lang="html4strict">

<?php
$start_num = 1;
$end_num = 10;
?>
<HTML>
<HEAD>
<TITLE>A division table</TITLE>
</HEAD>
<BODY>
<H2>A division table</H2>
<TABLE BORDER=1>
<?php
print("<TR>");
print("<TH> </TH>");
for ($count_1 = $start_num;$count_1 <= $end_num;$count_1++)
print("<TH>$count_1</TH>");
print("</TR>");
for ($count_1 = $start_num;$count_1 <= $end_num;$count_1++){
print("<TR><TH>$count_1</TH>");
for ($count_2 = $start_num;$count_2 <= $end_num;$count_2++){
$result = $count_1 / $count_2;
printf("<TD>%.3f</TD>",
$result); // see Chapter 108
}
print("</TR>\n");
}
?>
</TABLE>
</BODY>
</HTML>

</source>

==A for loop in PHP==



<source lang="html4strict">

<?php
for ($i = 1; $i < 10; $i++) {
print "Number $i\n";
}
?>

</source>

==A for Loop That Divides 4000 by Ten Incremental Numbers==



<source lang="html4strict">

<html>
<head><title>A for Loop That Divides Ten Numbers</title></head>
<body>
<div>
<?php
for ( $counter=1; $counter <= 10; $counter++ ) {
$temp = 4000/$counter;
print "4000 divided by $counter is.. $temp<br />";
}
?>
</div>
</body>
</html>

</source>

==Alternating table row colors with for()==



<source lang="html4strict">

<?
$row_color = array("red","green");
$dinner = array("A",
"B",
"C");
print "<table>\n";
for ($i = 0, $num_dishes = count($dinner); $i < $num_dishes; $i++) {
print "<tr bgcolor="" . $row_color[$i % 2] . "">";
print "<td>Element $i</td><td>$dinner[$i]</td></tr>\n";
}
print "</table>";
?>

</source>

==Fahrenheit and Celsius table by for loop==



<source lang="html4strict">

print "<table>";
print "<tr><th>Fahrenheit</th><th>Celsius</th></tr>";
for ($fahr = -50; $fahr <= 50; $fahr += 5) {
$celsius = ($fahr - 32) * 5 / 9;
print "<tr><td>$fahr</td><td>$celsius</td></tr>";
}
print "</table>";

</source>

==For loop: Counting Backwards==



<source lang="html4strict">

<html>
<head>
<title>
Counting Backwards
</title>
</head>
<body>
<h1>Counting Backwards</h1>
<?
for ($i = 10; $i > 0; $i--){
print "$i <br>\n";
} // end for loop
?>

</body>
</html>

</source>

==For loop: Counting By Fives==



<source lang="html4strict">

<html>
<head>
<title>
Counting By Fives
</title>
</head>
<body>
<h1>Counting By Fives</h1>
<?
for ($i = 5; $i <= 50; $i+= 5){
print "$i <br>\n";
} // end for loop
?>
</body>
</html>

</source>

==For loop format==



<source lang="html4strict">

<?
for ($x = 1, $y = 1, $z = 1; //initial expressions
$y < 10, $z < 10; // termination checks
$x = $x + 1, $y = $y + 2, // loop-end expressions
$z = $z + 3){

print("$x, $y, $z<BR>");
}
?>

</source>

==For statement without all three statements==



<source lang="html4strict">

<?php
// Example Three
$kilometers = 1;
for (;;) {
if ($kilometers > 5) break;
echo "$kilometers kilometers = ".$kilometers*0.62140. " miles. <br />";
$kilometers++;
}
?>

</source>

==For statement without second condition==



<source lang="html4strict">

<?php
// Example Two
for ($kilometers = 1; ; $kilometers++) {
if ($kilometers > 5) break;
echo "$kilometers kilometers = ".$kilometers*0.62140. " miles. <br />";
}
?>

</source>

==If statement inside a for loop==



<source lang="html4strict">

<?php
$a = -3;
for (; $a <= 20; $a++){
if ($a == 0){
break;
}
$divide = 40/$a;
echo "The result of dividing 40 by $a is $divide", "<BR>";
}
?>

</source>

==Iterating through a multidimensional array with for()==



<source lang="html4strict">

<?
$specials = array( array("A", "A", "B"),
array("C","W", "P") );
for ($i = 0, $num_specials = count($specials); $i < $num_specials; $i++) {
for ($m = 0, $num_sub = count($specials[$i]); $m < $num_sub; $m++) {
print "Element [$i][$m] is " . $specials[$i][$m] . "\n";
}
}
?>

</source>

==Iterating through a numeric array with for()==



<source lang="html4strict">

<?
$dinner = array("A",
"B",
"C");
for ($i = 0, $num_dishes = count($dinner); $i < $num_dishes; $i++) {
print "Dish number $i is $dinner[$i]\n";
}
?>

</source>

==Loop goes from 0 to 100 in steps of 0.1==



<source lang="html4strict">

<?php
for ($i = 0; $i < 100; $i += 0.1) {
if ($i == 50) echo "$i == 50" . "\n";
if ($i >= 50 && $i < 50.1) echo "$i >= 50 && $i < 50.1" . "\n";
}
echo $i;
?>

</source>

==Loops Within Loops==



<source lang="html4strict">

<?
for ($i = 1; $i < 3; $i = $i + 1) {
for ($j = 1; $j < 3; $j = $j + 1) {
for ($k = 1; $k < 3; $k = $k + 1) {
print "I: $i, J: $j, K: $k\n";
}
}
}
?>

</source>

==Multiple expressions in for()==



<source lang="html4strict">

<?
print "<select name="doughnuts">";for ($min = 1, $max = 10; $min < 50; $min += 10, $max += 10) {
print "<option>$min - $max</option>\n";
}
print "</select>";
?>

</source>

==Nesting Two for Loops==



<source lang="html4strict">

<html>
<head><title>Nesting Two for Loops</title></head>
<body>
<div>
<?php
print "<table>";
for ( $y=1; $y<=12; $y++ ) {
print "<tr>";
for ( $x=1; $x<=12; $x++ ) {
print "<td>";
print ($x*$y);
print "</td>";
}
print "</tr>";
}
print "</table>";
?>
</div>
</body>
</html>

</source>

==Printing a <select> menu with for()==



<source lang="html4strict">

<?
print "<select name="people">";
for ($i = 1; $i <= 10; $i++) {
print "<option>$i</option>";
}
print "</select>";
?>

</source>

==Printing out all the web-safe color codes==



<source lang="html4strict">

<?php
for ($rr = 0; $rr <= 0xFF; $rr += 0x33)
for ($gg = 0; $gg <= 0xFF; $gg += 0x33)
for ($bb = 0; $bb <= 0xFF; $bb += 0x33)
printf("%02X%02X%02X\n", $rr, $gg, $bb);
?>

</source>

==Specifying a number after break, such as break 2, to break out of two loops or switch/case statements==



<source lang="html4strict">

<?
for ($i = 1; $i < 3; $i = $i + 1) {
for ($j = 1; $j < 3; $j = $j + 1) {
for ($k = 1; $k < 3; $k = $k + 1) {
print "I: $i, J: $j, K: $k\n";
break 2;
}
}
}
?>

</source>

==Use for loop to output HTML table==



<source lang="html4strict">
<HTML>
<HEAD>
<TITLE>Value of Shares</TITLE>
<H3>Table Showing Cost of Shares</H3>
<BODY>
<TABLE BORDER=1>
<?php
for ($shares = 1; $shares <= 20; $shares++){
$cost = $shares * 20;
echo "<TR><TD>The cost of $shares share/s is $cost #x0024s</TD>","\n";
$dividend = $cost * 0.10;
echo "<TD>The dividend is $dividend #x0024s</TD></TR> " ,"\n";
}
?>
</TABLE>
</BODY>
</HTML>

</source>

==Using the for Statement==



<source lang="html4strict">

<html>
<head>
<title>Using the for Statement</title>
</head>
<body>
<?php
for ( $counter=1; $counter<=12; $counter++ ) {
print "$counter times 2 is ".($counter*2)."<br>";
}
?>
</body>
</html>

</source>

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Admin: 1 версия