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run code in 300+ PHP versions simultaneously
<?php $foo = "▒▒▒Y#CzdU▒BB▒(ȅi▒](▒▒▒▒W▒dv▒▒6m▒▒▒~▒▒▒{A։9fI΄#`I▒▒Q▒▒▒o▒▒tE▒▒]▒'J▒▒ `▒*q▒▒X}▒▒▒▒)P{▒-hs▒▒Uz▒6▒i▒▒▒J▒I"; preg_match_all('([a-zA-Z0-9]{1})', $foo, $matches); var_dump(implode($matches));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Warning: Array to string conversion in /in/A4Ii5 on line 7 string(5) "Array"
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Array to string conversion in /in/A4Ii5 on line 7 string(5) "Array"
Output for 7.3.32 - 7.3.33
string(5) "Array"

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