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run code in 300+ PHP versions simultaneously
<?php $json='{"http://ecx.images-amazon.com/images/I/51Lg%2Bd4cqRL._SX355_.jpg":[355,266],"http://ecx.images-amazon.com/images/I/51Lg%2Bd4cqRL._SX425_.jpg":[425,319],"http://ecx.images-amazon.com/images/I/51Lg%2Bd4cqRL._SX466_.jpg":[466,350],"http://ecx.images-amazon.com/images/I/51Lg%2Bd4cqRL._SX450_.jpg":[450,338],"http://ecx.images-amazon.com/images/I/51Lg%2Bd4cqRL.jpg":[500,375]}'; echo(implode("\n", array_keys(json_decode($json, TRUE))));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/O9bIo
function name:  (null)
number of ops:  14
compiled vars:  !0 = $json
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '%7B%22http%3A%2F%2Fecx.images-amazon.com%2Fimages%2FI%2F51Lg%252Bd4cqRL._SX355_.jpg%22%3A%5B355%2C266%5D%2C%22http%3A%2F%2Fecx.images-amazon.com%2Fimages%2FI%2F51Lg%252Bd4cqRL._SX425_.jpg%22%3A%5B425%2C319%5D%2C%22http%3A%2F%2Fecx.images-amazon.com%2Fimages%2FI%2F51Lg%252Bd4cqRL._SX466_.jpg%22%3A%5B466%2C350%5D%2C%22http%3A%2F%2Fecx.images-amazon.com%2Fimages%2FI%2F51Lg%252Bd4cqRL._SX450_.jpg%22%3A%5B450%2C338%5D%2C%22http%3A%2F%2Fecx.images-amazon.com%2Fimages%2FI%2F51Lg%252Bd4cqRL.jpg%22%3A%5B500%2C375%5D%7D'
    5     1        INIT_FCALL                                               'implode'
          2        SEND_VAL                                                 '%0A'
          3        INIT_FCALL                                               'array_keys'
          4        INIT_FCALL                                               'json_decode'
          5        SEND_VAR                                                 !0
          6        SEND_VAL                                                 <true>
          7        DO_ICALL                                         $2      
          8        SEND_VAR                                                 $2
          9        DO_ICALL                                         $3      
         10        SEND_VAR                                                 $3
         11        DO_ICALL                                         $4      
         12        ECHO                                                     $4
         13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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