Chart.js with php

Level 102

Show the surrounding code so we can see the context. Just a little on each side of this code

Concat with php uses a dot

'max' => 30 . '%'
//but why concat if it isn't a variable?
'max' => '30%'

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Level 1

@Sinnbeck

I've already tried that but i doesnt seems to work.

This is my code :

     'scales' => [
                'yAxes' => [
                    [
                        'ticks' => [
                            'max' => 30,
                            'min' => 10,
                        ]
                    ],
	]

Level 102

@The beginner does not work? How? Error?

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Level 18

@The beginner It won't work.

The graph is drawn according to the values you pass. If you pass 30 then they can parse it to integer and draw the map if you pass 30% it will not be an integer.

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Level 1

@Sinnbeck

If i try to concat this is what i got :

A non-numeric value encountered

The code that i've shown you work because it's only integer but if i add that : .'%'

it'll not work anymore

Level 1

@furqanDev

Yes, it only accepts integer so i'm asking how could i put that character '%' next to my values

https://stackoverflow.com/a/52044863

Level 102

@The beginner seems that it needs a formatter callback. Are you using a library to convert your php to chartjs format?

Level 1

@Sinnbeck The only llibrary i use is chartJS one so...

I'll check your link

Level 102

@The beginner well I assume you somehow convert that php to a config for chartjs?

Level 1

@Sinnbeck

I'm never converting my php (or maybe i don't really understand what you mean ^^')

Level 18

@The beginner Did you read the documentation ?

Check it and see if by any chance they provide this kind of option or not. I think there will be some option of prefix or postfix for datasets.

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https://www.chartjs.org/docs/latest/configuration/tooltip.html#label-callback

Level 18

@The beginner Look at the documentation. I hope this will help.

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Level 1

@furqanDev Hi, sorry for the delayed response...

The documentation is in js only i was looking for the "php way". But i'll give it a look

Best Answer

Level 18

@The beginner No worries.

There is not php way I'm afraid because the Charts are rendered through JS. You pass some values as a json response from php backend and set those values/object/array as a dataset. Those dataset should be number because the chart will be drawn according to that number. If they have option to add prefix that would be perfect.

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