convert a javascript code snippet to php -

i have javascript code this.i want convert code in php.as beginer in php struggling convert code snippet in php.how can perform this?

java script

 var view = [{data: [["1:24:22", 969],["1:24:42", 970],["1:25:03", 972]]}, {data: [["2:35:22", 969],["2:44:42", 970],["2:55:03", 972]]}];     view.foreach(function (r) {         k = 0;         r.data.foreach(function (d) {             d[0] = ++k;         });     });  tried 

php

$view = [{data: [["1:24:22", 969],["1:24:42", 970],["1:25:03", 972]]}, {data: [["2:35:22", 969],["2:44:42", 970],["2:55:03", 972]]}]; 

below code php version of javascript. $view taken json string , can manipulated below. appreciate @marty's comment, think you.

$view = '[{"data": [["1:24:22", "969"],["1:24:42", "970"],["1:25:03", "972"]]}, {"data": [["2:35:22", "969"],["2:44:42", "970"],["2:55:03", "972"]]}]'; $view = json_decode($view); foreach($view $r){     $k=0;     foreach($r->data $d){         $d[0] = ++$k;     } }