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WIP of letter avatar generator:

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- Use hash system to pick always the same color for given user
This commit is contained in:
Hadi Nategh 2016-09-05 12:50:04 +02:00
parent 4a25a4a1d3
commit cc278e0d17
1 changed files with 23 additions and 2 deletions
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25
api/src/avatar.php
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@ -55,6 +55,7 @@ class avatar
* array (
* 'firstname' => [userFirstname],
* 'lastname' => [userLastname],
* 'id' => [user id]
* )
* @param array $_color = null an array of RGB color, default
* is nul to get a random color from color library.
@ -72,10 +73,11 @@ class avatar
$firstname = isset($_content['firstname'])? $_content['firstname'] : '';
//lastname
$lastname = isset($_content['lastname'])? $_content['lastname'] : '';
// id
$id = isset($_content['id'])? $_content['id']: '';
$bg_index = rand(0, count(self::$BG_COLORS));
// Array of RGB color as background color
$bgcolor = $_color ? $_color : self::$BG_COLORS[$bg_index];
$bgcolor = $_color ? $_color : self::_getBgColor($firstname.$lastname.$id);
// Letters to be shown
$text = $firstname[0].$lastname[0];
@ -116,4 +118,23 @@ class avatar
imagedestroy($image);
}
}
/**
* Function to select a color code from background colors array
* base on given string phrase. (FirstName LastName Id)
*
* @param string $_str string to convert to a color code
*
* @return string color code
*/
private static function _getBgColor ($_str)
{
$hash = 0;
for ($i=0; $i< strlen($_str); $i++)
{
$hash = ord($_str[$i]) + $hash;
}
$index = $hash % count(self::$BG_COLORS);
return self::$BG_COLORS[$index];
}
}