Here's how to convert json to csv in php by using json keys as column headers for csv file. Even though json format is immensely popular for data exchange over web, there are times you may need to work with csv data and have to convert json to csv.
The name POI was originally an acronym for Poor Obfuscation Implementation, referring humorously to the fact that the file formats seemed to be deliberately obfuscated, but poorly, since they were successfully reverse-engineered.
If your project uses Maven as dependency management, add following in your Pom. Include this file in your projects class path. Create new java project in eclipse with auto generated main function. In below sample code we use different classes from POI library to read content of cell from excel file.
This is for quick reference.
In order to work with newer xls format viz. Consider a sample excel file: It read the sheet from workbook and iterate through each row and cell to print its values. Before reading a cell content, we need to first determine its type using method cell.
Emp Id Name Salary 1. Create New Excel File Let us create a new excel file and write data in it.
Following is the API which we will use for this purpose. Update Existing Excel File Updating an existing excel file is straight forward. One thing we need to note here is that we can update the excel file only when we close it first.
Close the excel input file inputstream Open same excel file in output mode outputstream Write content of updated workbook in output file Close output excel file Output: Following method that comes handy for this:I came to this page looking for an answer and found that all solutions were very slow for large arrays that include numeric and char based cell arrays of non-standard combinations.
fputcsv(): Writing data to file We can prepare data to store in a comma separated value (CSV) file by using fputcsv() function. Here is the syntax. A slight adaptation to the solution above by kingjeffrey for when you want to create and echo the CSV within a template (Ie - most frameworks will have output buffering enabled and you are required to set headers etc in controllers.).
Change "w" to "a" in the schwenkreis.com changes "write" into "append". "append" opens the file and writes at the end of the file, not from the beginning like "write". i.e. change this line. We have use some PHP in build function like fopen() for open file for write operation, file() function for get file data in array format for count number of rows in file and fputcsv() function for write form data in csv file.
CSV (comma-separated values) is the most popular file format to store tabular data in plain text. Generally, CSV file is used to import and export data for moving tabular data between programs. Generally, CSV file is used to import and export data for moving tabular data between programs.