How did the user attempt to resolve the x-axis formatting issue in their PHP code?

The user attempted to resolve the x-axis formatting issue in their PHP code by setting the x-axis tick interval to 1 in the Highcharts options. This would ensure that each data point on the x-axis is displayed without any skipping or overlapping. 

xAxis: {
    tickInterval: 1
}

Keywords

x-axis formatting PHP code user resolve

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