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<?php $key = '价格'; $doc = []; $doc[$key] = "120"; $value = $doc[$key]; var_dump($doc); if(preg_match('/[0-9]\d*/', $value)) $doc[$key] = floatval($value); else unset($doc[$key]); var_dump($doc);
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
array(1) { ["价格"]=> string(3) "120" } array(1) { ["价格"]=> float(120) }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/3d5re on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/3d5re on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/3d5re on line 4
Process exited with code 255.
preferences:
274.5 ms | 401 KiB | 460 Q