php对json数据面前加0

Question

[{"issue":"20200126079","openNum":"3,8,4,6,9,2,5,7,10,1","openDateTime":1580038740000},{"issue":"20200126078","openNum":"4,5,8,2,9,10,7,1,3,6","openDateTime":1580038440000},{"issue":"20200126077","openNum":"2,5,8,7,10,6,9,4,1,3","openDateTime":1580038140000},{"issue":"20200126076","openNum":"9,8,1,5,4,10,3,7,6,2","openDateTime":1580037840000},{"issue":"20200126075","openNum":"8,4,10,5,6,9,1,7,2,3","openDateTime":1580037540000},{"issue":"20200126074","openNum":"10,8,5,1,4,6,9,7,2,3","openDateTime":1580037240000},{"issue":"20200126073","openNum":"2,4,6,8,3,10,7,1,5,9","openDateTime":1580036940000},{"issue":"20200126072","openNum":"8,10,2,3,7,9,1,5,6,4","openDateTime":1580036640000},{"issue":"20200126071","openNum":"3,8,7,1,9,10,4,5,6,2","openDateTime":1580036340000},{"issue":"20200126070","openNum":"3,1,10,7,6,5,9,8,4,2","openDateTime":1580036040000},{"issue":"20200126069","openNum":"2,10,8,3,5,4,9,7,1,6","openDateTime":1580035740000},{"issue":"20200126068","openNum":"5,10,7,1,4,6,9,2,3,8","openDateTime":1580035440000},{"issue":"20200126067","openNum":"1,6,7,3,9,5,2,10,8,4","openDateTime":1580035140000},{"issue":"20200126066","openNum":"7,5,6,2,8,9,1,10,3,4","openDateTime":1580034840000},{"issue":"20200126065","openNum":"3,10,1,8,5,9,4,7,6,2","openDateTime":1580034540000},{"issue":"20200126064","openNum":"8,3,5,4,7,9,6,2,10,1","openDateTime":1580034240000},{"issue":"20200126063","openNum":"3,6,2,4,7,1,5,10,9,8","openDateTime":1580033940000},{"issue":"20200126062","openNum":"7,10,9,5,1,3,2,6,8,4","openDateTime":1580033640000},{"issue":"20200126061","openNum":"6,8,2,1,5,3,7,9,4,10","openDateTime":1580033340000},{"issue":"20200126060","openNum":"4,2,1,9,8,3,7,10,6,5","openDateTime":1580033040000}]

这是一个接送数组 想对opennum这个里面的数字分别加0 ，10除外