# how to label the points on my graph (x and y axis)

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• Author
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Hi all!

Ive got a very simple page shown below to draw a line graph and I need
some help, how do can i label each point on the X and the Y axis? The
lines are drawn with an imageline function, any ideas?

Kind regards

Marc

<?
// Add values to the graph
\$graphValues=array(0,80,23,11,190,245,50,80,111,240,55);

// Define .PNG image
\$imgWidth=250;
\$imgHeight=250;

// Create image and define colors
\$image=imagecreate(\$imgWidth, \$imgHeight);
\$colorWhite=imagecolorallocate(\$image, 255, 255, 255);
\$colorGrey=imagecolorallocate(\$image, 192, 192, 192);
\$colorBlue=imagecolorallocate(\$image, 0, 0, 255);

// Create GREY border around image
imageline(\$image, 0, 0, 0, 250, \$colorGrey);
imageline(\$image, 0, 0, 250, 0, \$colorGrey);
imageline(\$image, 249, 0, 249, 249, \$colorGrey);
imageline(\$image, 0, 249, 249, 249, \$colorGrey);

// Create grid using the imageline function to draw lines on the x and
the y (in grey)
for (\$i=1; \$i<11; \$i++){

imageline(\$image, \$i*25, 0, \$i*25, 250, \$colorGrey);
imageline(\$image, 0, \$i*25, 250, \$i*25, \$colorGrey);
}

// Create line graph by looping through the data
for (\$i=0; \$i<10; \$i++){
imageline(\$image, \$i*25, (250-\$graphValues[\$i]), (\$i+1)*25,
(250-\$graphValues[\$i+1]), \$colorBlue);
}

// Output graph and clear image from memory
imagepng(\$image);
imagedestroy(\$image);
?>

## Re: how to label the points on my graph (x and y axis)

Kimmo Laine wrote:

Unless next_page.php generates PHP, the script with this include will
only get HTML.

next_page.php

<?php
if (isset(\$_GET['foo'])) {
echo '<?php echo \$_GET[\'foo\']; ?>';
} else {
echo '<?php echo \'Not available\'; ?>';
}

--