PHP GD Library to draw an example code for a 24-hour bar chart

/* 24-Hour Bar chart Author: Taokey qq:29611705 * Editor: Bbs.it-home.org */ function H24 ($STR) { $hour = Explode (",", $str); $hmax = max ($hour); $ppix = 150/$hmax; Calculate the height of a bar chart $h 0 = 190-$hour [0]* $ppix; $h 1 = 190-$hour [1]* $ppix; $h 2 = 190-$hour [2]* $ppix; $h 3 = 190-$hour [3]* $ppix; $h 4 = 190-$hour [4]* $ppix; $h 5 = 190-$hour [5]* $ppix; $h 6 = 190-$hour [6]* $ppix; $h 7 = 190-$hour [7]* $ppix; $h 8 = 190-$hour [8]* $ppix; $h 9 = 190-$hour [9]* $ppix; $h = 190-$hour [10]* $ppix; $h one = 190-$hour [11]* $ppix; $h = 190-$hour [12]* $ppix; $h = 190-$hour [13]* $ppix; $h = 190-$hour [14]* $ppix; $h = 190-$hour [15]* $ppix; $h = 190-$hour [16]* $ppix; $h = 190-$hour [17]* $ppix; $h = 190-$hour [18]* $ppix; $h = 190-$hour [19]* $ppix; $h = 190-$hour [20]* $ppix; $h = 190-$hour [21]* $ppix; $h = 190-$hour [22]* $ppix; $h = 190-$hour [23]* $ppix; Create an img $img = Imagecreate (755,210); Background $BGC = Imagecolorallocate ($img, 245, 250, 254); Black $BC = Imagecolorallocate ($img, 0,0,0); Draw a vertical axis Imageline ($img, 15,30,15,189, $BC); Draw the horizontal axis Imageline ($img, 15,190,750,190, $BC); Draw a vertical pivot point For ($i =39, $j =10; $i <189; $i = $i +15, $j-) { Imageline ($img, $i, $i, $BC); Imagestring ($img, $i -4, $j. " X ", $BC); } Draw a horizontal point $t = true; For ($i =31, $j =29; $i <750; $i = $j +1, $j = $j +15) { if ($t) { $x = $i; $t =false; }else{ $x = $i +1; $t =true; } Imageline ($img, $x, $x, 192, $BC); } Vertical axis Marking $x = Ceil ($hmax/10); Imagestring ($img, 2,10,15, "x=". $x, $BC); Vertical axis Marking 0 Pips $color = Imagecolorallocate ($img, Mt_rand (0, 255), Mt_rand (0, 255), Mt_rand (0, 255)); Imagefilledrectangle ($img, $h 0,45,189, $color); Imagestring ($img, 1,31, $h 0-10, $hour [0], $color); Imagechar ($img, 1,36,195,0, $BC); 1 pips $color = Imagecolorallocate ($img, Mt_rand (0, 255), Mt_rand (0, 255), Mt_rand (0, 255)); Imagefilledrectangle ($img, $h 1,75,189, $color); Imagestring ($img, 1,61, $h 1-10, $hour [1], $color); Imagechar ($img, 1,66,195,1, $BC); 2 pips $color = Imagecolorallocate ($img, Mt_rand (0, 255), Mt_rand (0, 255), Mt_rand (0, 255)); Imagefilledrectangle ($img, $h 2,105,189, $color); Imagestring ($img, 1,91, $h 2-10, $hour [2], $color); Imagechar ($img, 1,96,195,2, $BC); 3 pips $color = Imagecolorallocate ($img, Mt_rand (0, 255), Mt_rand (0, 255), Mt_rand (0, 255)); Imagefilledrectangle ($img, 121, $h 3,135,189, $color); Imagestring ($img, 1,121, $h 3-10, $hour [3], $color); Imagechar ($img, 1,126,195,3, $BC); 4 pips $color = Imagecolorallocate ($img, Mt_rand (0, 255), Mt_rand (0, 255), Mt_rand (0, 255)); Imagefilledrectangle ($img, 151, $h 4,165,189, $color); Imagestring ($img, 1,151, $h 4-10, $hour [4], $color); Imagechar ($img, 1,156,195,4, $BC); 5 pips $color = Imagecolorallocate ($img, Mt_rand (0, 255), Mt_rand (0, 255), Mt_rand (0, 255)); Imagefilledrectangle ($img, 181, $h 5,195,189, $color); Imagestring ($img, 1,181, $h 5-10, $hour [5], $color); Imagechar ($img, 1,186,195,5, $BC); 6 pips $color = Imagecolorallocate ($img, Mt_rand (0, 255), Mt_rand (0, 255), Mt_rand (0, 255)); Imagefilledrectangle ($img, 211, $h 6,225,189, $color); Imagestring ($img, 1,211, $h 6-10, $hour [6], $color); Imagechar ($img, 1,216,195,6, $BC); 7 pips $color = Imagecolorallocate ($img, Mt_rand (0, 255), Mt_rand (0, 255), Mt_rand (0, 255)); Imagefilledrectangle ($img, 241, $h 7,255,189, $color); Imagestring ($img, 1,241, $h 7-10, $hour [7], $color); Imagechar ($img, 1,246,195,7, $BC); 8 pips $color = Imagecolorallocate ($img, Mt_rand (0, 255), Mt_rand (0, 255), Mt_rand (0, 255)); Imagefilledrectangle ($img, 271, $h 8,285,189, $color); Imagestring ($img, 1,271, $h 8-10, $hour [8], $color); Imagechar ($img, 1,276,195,8, $BC); 9 pips $color = Imagecolorallocate ($img, Mt_rand (0, 255), Mt_rand (0, 255), Mt_rand (0, 255)); Imagefilledrectangle ($img, 301, $h 9,315,189, $color); Imagestring ($img, 1,301, $h 9-10, $hour [9], $color); Imagechar ($img, 1,306,195,9, $BC); 10 pips $color = Imagecolorallocate ($img, Mt_rand (0, 255), Mt_rand (0, 255), Mt_rand (0, 255)); Imagefilledrectangle ($img, 331, $h 10,345,189, $color); Imagestring ($img, 1,331, $h 10-10, $hour [ten], $color); Imagestring ($img, 1,334,195,10, $BC); 11 pips $color = Imagecolorallocate ($img, Mt_rand (0, 255), Mt_rand (0, 255), Mt_rand (0, 255)); Imagefilledrectangle ($img, 361, $h 11,375,189, $color); Imagestring ($img, 1,361, $h 11-10, $hour [one], $color); Imagestring ($img, 1,364,195,11, $BC); 12 pips $color = Imagecolorallocate ($img, Mt_rand (0, 255), Mt_rand (0, 255), Mt_rand (0, 255)); Imagefilledrectangle ($img, 391, $h 12,405,189, $color); Imagestring ($img, 1,391, $h 12-10, $hour [n], $color); Imagestring ($img, 1,394,195,12, $BC); 13 pips $color = Imagecolorallocate ($img, Mt_rand (0, 255), Mt_rand (0, 255), Mt_rand (0, 255)); Imagefilledrectangle ($img, 421, $h 13,435,189, $color); Imagestring ($img, 1,421, $h 13-10, $hour [], $color); Imagestring ($img, 1,424,195,13, $BC); 14 Pips $color = Imagecolorallocate ($img, Mt_rand (0, 255), Mt_rand (0, 255), Mt_rand (0, 255)); Imagefilledrectangle ($img, 451, $h 14,465,189, $color); Imagestring ($img, 1,451, $h 14-10, $hour [+], $color); Imagestring ($img, 1,454,195,14, $BC); 15 pips $color = Imagecolorallocate ($img, Mt_rand (0, 255), Mt_rand (0, 255), Mt_rand (0, 255)); Imagefilledrectangle ($img, 481, $h 15,495,189, $color); Imagestring ($img, 1,481, $h 15-10, $hour [], $color); Imagestring ($img, 1,481,195,15, $BC); 16 pips $color = Imagecolorallocate ($img, Mt_rand (0, 255), Mt_rand (0, 255), Mt_rand (0, 255)); Imagefilledrectangle ($img, 511, $h 16,525,189, $color); Imagestring ($img, 1,511, $h 16-10, $hour [+], $color); Imagestring ($img, 1,511,195,16, $BC); 17 Pips $color = Imagecolorallocate ($img, Mt_rand (0, 255), Mt_rand (0, 255), Mt_rand (0, 255)); Imagefilledrectangle ($img, 541, $h 17,555,189, $color); Imagestring ($img, 1,541, $h 17-10, $hour [+], $color); Imagestring ($img, 1,544,195,17, $BC); 18 Pips $color = Imagecolorallocate ($img, Mt_rand (0, 255), Mt_rand (0, 255), Mt_rand (0, 255)); Imagefilledrectangle ($img, 571, $h 18,585,189, $color); Imagestring ($img, 1,571, $h 18-10, $hour [], $color); Imagestring ($img, 1,571,195,18, $BC); 19 Pips $color = Imagecolorallocate ($img, Mt_rand (0, 255), Mt_rand (0, 255), Mt_rand (0, 255)); Imagefilledrectangle ($img, 601, $h 19,615,189, $color); Imagestring ($img, 1,601, $h 19-10, $hour [+], $color); Imagestring ($img, 1,604,195,19, $BC); 20 pips $color = Imagecolorallocate ($img, Mt_rand (0, 255), Mt_rand (0, 255), Mt_rand (0, 255)); Imagefilledrectangle ($img, 631, $h 20,645,189, $color); Imagestring ($img, 1,631, $h 20-10, $hour [], $color); Imagestring ($img, 1,634,195,20, $BC); 21 Pips $color = Imagecolorallocate ($img, Mt_rand (0, 255), Mt_rand (0, 255), Mt_rand (0, 255)); Imagefilledrectangle ($img, 661, $h 21,675,189, $color); Imagestring ($img, 1,661, $h 21-10, $hour [+], $color); Imagestring ($img, 1,664,195,21, $BC); 22 pips $color = Imagecolorallocate ($img, Mt_rand (0, 255), Mt_rand (0, 255), Mt_rand (0, 255)); Imagefilledrectangle ($img, 691, $h 22,705,189, $color); Imagestring ($img, 1,691, $h 22-10, $hour [], $color); Imagestring ($img, 1,694,195,22, $BC); 23 Pips $color = Imagecolorallocate ($img, Mt_rand (0, 255), Mt_rand (0, 255), Mt_rand (0, 255)); Imagefilledrectangle ($img, 721, $h 23,735,189, $color); Imagestring ($img, 1,721, $h 23-10, $hour [], $color); Imagestring ($img, 1,724,195,23, $BC); It's not good to look after adding a border. Imagerectangle ($img, 0, 0, 754, 209, $BC); Imagepng ($IMG); Imagedestroy ($IMG); } $str = isset ($_get[' str '])? $_get[' str ']: ""; if ($STR) { H24 ($STR); } ?> Copy Code

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