my_plot()

Complexity

Conditions	34
Paths	> 20000

Size

Total Lines	129
Code Lines	88

Duplication

Lines	0
Ratio	0 %

Importance

Changes

0

<?php
function my_plot($chart_title, $xdata, $xtitle, $ydata, $ytitle, $legend) {
	global $percentage, $male_female, $ymax, $scalefactor, $datastring, $imgurl;

Use of global functionality is not recommended; it makes your code harder to test, and less reusable.

	// Google Chart API only allows text encoding for numbers less than 100
	// and it does not allow adjusting the y-axis range, so we must find the maximum y-value
	// in order to adjust beforehand by changing the numbers

	if ($male_female) {
		$stop = 2;
	} else {
		$stop = count($ydata);
	}
	if ($percentage) {
		$ypercentmax = 0;
		$yt          = [];
		for ($i = 0; $i < $stop; $i++) {
			if (isset($ydata[$i])) {
				$ymax   = max($ydata[$i]);
				$yt[$i] = array_sum($ydata[$i]);
				if ($yt[$i] > 0) {
					$ypercent    = round($ymax / $yt[$i] * 100, 1);
					$ypercentmax = max($ypercentmax, $ypercent);
				}
			}
		}
		$ymax = $ypercentmax;
		if ($ymax > 0) {
			$scalefactor = 100.0 / $ymax;
		} else {
			$scalefactor = 0;
		}
		$datastring = 'chd=t:';
		for ($i = 0; $i < $stop; $i++) {
			if (isset($ydata[$i])) {
				foreach ($ydata[$i] as $j => $data) {
					if ($j > 0) {
						$datastring .= ',';
					}
					if ($yt[$i] > 0) {
						$datastring .= round($data / $yt[$i] * 100 * $scalefactor, 1);
					} else {
						$datastring .= '0';
					}
				}
				if ($i !== $stop - 1) {
					$datastring .= '|';
				}
			}
		}
	} else {
		for ($i = 0; $i < $stop; $i++) {
			$ymax = max($ymax, max($ydata[$i]));
		}
		if ($ymax > 0) {
			$scalefactor = 100.0 / $ymax;
		} else {
			$scalefactor = 0;
		}
		$datastring = 'chd=t:';
		for ($i = 0; $i < $stop; $i++) {
			foreach ($ydata[$i] as $j => $data) {
				if ($j > 0) {
					$datastring .= ',';
				}
				$datastring .= round($data * $scalefactor, 1);
			}
			if ($i !== $stop - 1) {
				$datastring .= '|';
			}
		}
	}
	$colors      = ['0000FF', 'FFA0CB', '9F00FF', 'FF7000', '905030', 'FF0000', '00FF00', 'F0F000'];
	$colorstring = 'chco=';
	for ($i = 0; $i < $stop; $i++) {
		if (isset($colors[$i])) {
			$colorstring .= $colors[$i];
			if ($i !== ($stop - 1)) {
				$colorstring .= ',';
			}
		}
	}

	$imgurl = 'https://chart.googleapis.com/chart?cht=bvg&amp;chs=950x300&amp;chf=bg,s,ffffff00|c,s,ffffff00&amp;chtt=' . rawurlencode($chart_title) . '&amp;' . $datastring . '&amp;' . $colorstring . '&amp;chbh=';
	if (count($ydata) > 3) {
		$imgurl .= '5,1';
	} elseif (count($ydata) < 2) {
		$imgurl .= '45,1';
	} else {
		$imgurl .= '20,3';
	}
	$imgurl .= '&amp;chxt=x,x,y,y&amp;chxl=0:|';
	foreach ($xdata as $data) {
		$imgurl .= rawurlencode($data) . '|';

$data of type integer[] is incompatible with the type string expected by parameter $str of rawurlencode().

	}

	$imgurl .= '1:||||' . rawurlencode($xtitle) . '|2:|';
	$imgurl .= '0|';
	if ($percentage) {
		for ($i = 1; $i < 11; $i++) {
			if ($ymax < 11) {
				$imgurl .= round($ymax * $i / 10, 1) . '|';
			} else {
				$imgurl .= round($ymax * $i / 10, 0) . '|';
			}
		}
		$imgurl .= '3:||%|';
	} else {
		if ($ymax < 11) {
			for ($i = 1; $i < $ymax + 1; $i++) {
				$imgurl .= round($ymax * $i / ($ymax), 0) . '|';
			}
		} else {
			for ($i = 1; $i < 11; $i++) {
				$imgurl .= round($ymax * $i / 10, 0) . '|';
			}
		}
		$imgurl .= '3:||' . rawurlencode($ytitle) . '|';
	}
	// Only show legend if y-data is non-2-dimensional
	if (count($ydata) > 1) {
		$imgurl .= '&amp;chdl=';
		foreach ($legend as $i => $data) {
			if ($i > 0) {
				$imgurl .= '|';
			}
			$imgurl .= rawurlencode($data);
		}
	}
	echo '<img src="', $imgurl, '" width="950" height="300" alt="', e($chart_title), '">';
}