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<?php $a1 = array('a1','a2', 'a3','a4'); //$result=""; foreach ($a1 as $a2) { $result.='"'.$a2.'"'.','; } echo $result;
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Warning: Undefined variable $result in /in/aGLRK on line 6 "a1","a2","a3","a4",
Output for 5.0.4 - 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 - 7.4.25, 7.4.27 - 7.4.33
Notice: Undefined variable: result in /in/aGLRK on line 6 "a1","a2","a3","a4",
Output for 7.3.32 - 7.3.33, 7.4.26
"a1","a2","a3","a4",
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
Notice: Undefined variable: result in /in/aGLRK on line 6 "a1","a2","a3","a4",

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