以下是PHP中两个转义字符串的示例。这是正确的（或更新的）方式吗？我希望我的网站是最新的，并且安全。谢谢！
示例1：
x_data : [30.019169654005868, 30.04151686293841, 30.003138702178568, 29.948259618114108, 29.973804961551597, 30.106418046307358, 30.02377731407854, 29.995462731965706, 30.060531767570676, 30.016641427558056, 29.79484435714953, 30.002353505751056, 29.93743604963893, 30.088668570426364, 29.789298610893283, 30.003070898711083, 30.07451548627123, 29.828669735419904, 29.928255899050924, 30.175214235408138, 29.930167990278186, 29.90277620297527, 29.91114439856375, 30.050973680551458, 29.881981688838813, 29.886764810970924, 30.12852171960371, 29.976742858188068, 30.102555513370692, 30.08058843864956, 30.01423060105985, 30.1417785666331, 29.94505775236722, 30.036190477298756, 29.999186746912457, 29.801194309808547, 29.86687585345513, 30.17350921771019, 29.84327182238387, 29.978272129448513]
y_data : [120.04311664719668, 120.04728396026447, 120.01752613183059, 119.96947626260086, 120.0074708368806, 119.85338543010528, 119.96354679730872, 120.0944221002095, 120.03622348805933, 119.91071772762156, 120.05201177439841, 119.88085394982495, 120.05182262414606, 119.96638039334746, 119.73626135724012, 120.0385386987263, 120.04360494847882, 119.78820975685764, 119.84457167286291, 119.94155466510361, 119.92755300397495, 120.24845049779589, 119.91834572339475, 120.04973567488224, 120.07455650203526, 120.18076686378147, 120.05745691621354, 120.00766570986937, 119.95423853371014, 120.01967657984122, 120.11763488442516, 120.0020441058596, 120.03321571537539, 120.03342406652649, 119.89723002259565, 119.89898775137291, 120.02497021225373, 120.0325009361513, 119.95872465372054, 120.04806845389801]
z_data : [7.458065212215647, 6.903780231006986, 7.892983766488841, 6.800527070280217, 7.6786335024572026, 2.639290437583994, 7.483173794841493, 6.3612714682233475, 6.41178477092057, 6.4302664723366, 0.9067154836465008, 5.578804230084947, 6.118359074221694, 5.221492189799962, 0.15189593638054374, 7.664073535801603, 5.74875474926795, 0.5975396029452897, 3.3630086876332186, 1.5742013987259473, 5.4690573960257325, 1.0600661981383745, 4.538944615534413, 6.5691812133605465, 3.451341688493068, 1.8517276371989146, 3.208238036016542, 7.734045908198488, 4.463402992774631, 5.695873253187933, 5.5737678967269515, 2.9124171786511046, 6.656749594702553, 7.24802632727239, 6.110882289123907, 0.854596336208196, 3.229916326704241, 1.7202433033042304, 2.233050305489856, 7.335873672423284]
/.local/lib/python3.5/site-packages/matplotlib/figure.py:1999: UserWarning: This figure includes Axes that are not compatible with tight_layout, so results might be incorrect.
warnings.warn("This figure includes Axes that are not compatible "
2018-05-15 09:10:05.847451: W tensorflow/core/platform/cpu_feature_guard.cc:45] The TensorFlow library wasn't compiled to use SSE4.1 instructions, but these are available on your machine and could speed up CPU computations.
2018-05-15 09:10:05.847481: W tensorflow/core/platform/cpu_feature_guard.cc:45] The TensorFlow library wasn't compiled to use SSE4.2 instructions, but these are available on your machine and could speed up CPU computations.
2018-05-15 09:10:05.847489: W tensorflow/core/platform/cpu_feature_guard.cc:45] The TensorFlow library wasn't compiled to use AVX instructions, but these are available on your machine and could speed up CPU computations.
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示例2：
$fName = mysqli_real_escape_string($db, $_POST['fName']);
$password = mysqli_real_escape_string($db, $_POST['password']);