The best replacement for explode is implode.

The best alternatives to explode are rated as following:
★★★★★  implode
★★★  split
★★★  no shotgun
★★  nano vapor
★★  nitrix
★★  superpump 250
★★  preg_split
★  cell mass
★  implode php
★  burst
★  c4
★  split php
★  cell tech
★  preg_match
★  detonate
★  jack 3d
★  black powder
★  str_split
  explote
  strtok
  bloombastic
  blast cycle
  force factor
  strpos
  jacked
  fast twitch
  collapse
  burst autocad
  muscle rx
  pump tech
  muscle pharm assault

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Speaking about explode, one probably shouldn't forget about trim php.

Other search terms related to explode and their ratings are:
★★★★★ trim php
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Google Trends

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explode
implode
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