PHP GD how to draw text over a line

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花落未央
花落未央 2021-01-12 09:21

The final output should be like image(HELLO WORLD): \"Ignore

Here is what i am do

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  •  谎友^
    谎友^ (楼主)
    2021-01-12 10:05

    This is not the exact thing what you may be looking for, but i believe it will help you

    $im = imagecreate(400,400); 
    
    $txtcol = imagecolorallocate($im, 0xFF, 0xFF, 0x00);
    
    $size = 20;
    
    $txt = 'DUMMY TEXT';
    
    $font = 'Capriola-Regular.ttf';
    
    /*two points for base line*/
    
    $x1 = 70; $x2 = 170; 
    
    $y1 = 140; $y2 = 240;
    
    /*bof finding line angle*/
    
    $delta_x = $x2-$x1;
    
    $delta_y = $y2-$y1;
    
    $texangle = (rad2deg(atan2($delta_y,$delta_x)) * 180 / M_PI)-360;
    
    /*eof finding the line angle*/
    
    
    imageline($im,$x1,$y1,$x2,$y2,'0xDD'); //Drawing line
    imagettftext($im, $size, -45, $x1, $y1-10, '0xDD', $font, $txt); // Drawing text over line at line's angle
    
    header('Content-Type: image/png');
    
    imagepng($im);
    imagedestroy($im);
    

    values are hard coded. Here the angle is given as -45 and for that angle if you want your text to appear above line you have to reduce the value from initial Y position of your line. And you will have to write code to calculate the angle with line's x1,x2y1,y2

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