I want to show a number from a database in the format x,xxx.00 in a textfield, then if it is changed by the user I want to post the value of the number to a decimal field. However, once you number_format the number it becomes a string, and numbers like 3,379.90 give a value of 3 when posted to the database, which is hinted at in the notes on number_format. I suppose I need a string to number function - can someone tell me what this might be called please?
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