JpGraph4.0.2 Chinese garbled characters and solutions that cannot be displayed in php7.0 version

1.php7.0 version cannot display . Methods with the same name as their class will not be constructors in a future version of PHP:

JpGraph4.0.2 cannot display graphical reports correctly in PHP7.0 version.

The following error was obtained through php log:

Before modification:

will change the function LinePlot Changed to function __construct

After modification:

Reason: Before

php7.0, the method with the same name as the class can be regarded as a constructor method.

After php7.0, the constructor with the same name as the class will no longer be supported, and the constructor method will uniformly use __construct().

2. The Chinese title is garbled

Cause:

The default in JpGraph is to convert the string into utf8, but if your file It is utf8 itself and uses Chinese fonts. It will be converted once. As a result, if it is converted one more time, garbled characters will appear.

Solution:

Use the following encoding to convert all places where Chinese is used.

$graph->title->Set(iconv("UTF-8","GB2312//IGNORE","网志博客信息统计表"));
$graph->xaxis->title->Set(iconv("UTF-8","GB2312//IGNORE","X-标题"));
$graph->yaxis->title->Set(iconv("UTF-8","GB2312//IGNORE","Y-标题"));

Note:

Use the PHP function to convert Chinese data from UTF-8 to GB2312. Remember that due to a bug in iconv itself, iconv will make an error when converting the character "—" to gb2312. , so add "//IGNORE" after the encoding to be converted.

Recommended: "PHP7"

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