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<?php $var1 = '123'; $var2 = '456A'; $var3 = '78'; $var4 = (int) $var2; $var5 = (float) $var2; $var6 = $var2 + 0; $var7 = 0 + $var2; comparevar("var1 and var2", $var1, $var2); comparevar("var2 and var3", $var2, $var3); comparevar("var3 and var1", $var3, $var1); comparevar("var4 and var5", $var4, $var5); function comparevar($tag, $arg1, $arg2) { say($tag); if ($arg1 === $arg2) { say("$arg1 === $arg2"); } if ($arg1 ===$arg2) { say("$arg1 == $arg2"); } if ($arg1 < $arg2) { say("$arg1 < $arg2"); } if ($arg1 > $arg2) { say("$arg1 > $arg2"); } } function say($str) { echo $str, "\n"; }
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: A non-numeric value encountered in /in/VlSBi on line 8 Warning: A non-numeric value encountered in /in/VlSBi on line 9 var1 and var2 123 < 456A var2 and var3 456A < 78 var3 and var1 78 < 123 var4 and var5
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: A non well formed numeric value encountered in /in/VlSBi on line 8 Notice: A non well formed numeric value encountered in /in/VlSBi on line 9 var1 and var2 123 < 456A var2 and var3 456A < 78 var3 and var1 78 < 123 var4 and var5
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, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.3.32 - 7.3.33
var1 and var2 123 < 456A var2 and var3 456A < 78 var3 and var1 78 < 123 var4 and var5

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