PHP vazifa to'plami 9.7 Darajasi

Sayt yarating, unga kirganda foydalanuvchiga yahshi yoki yomon tasodifiy bashorat qaytarilsin. Bashoratlar ma'lumotlar bazasida saqlansin. Sahifani yangilaganda, bashorat joriy kun davomida o'zgartirilmasligi kerak.

Ixtiyoriy ikki o'lchovli massiv berilgan:

[
	[11, 12, 13, 14, 15],
	[21, 22, 23, 24, 25],
	[31, 32, 33, 34, 35],
	[41, 42, 43, 44, 45],
	[51, 52, 53, 54, 55],
]

Diagonallarda joylashmagan elementlarni nolga aylantiring:

[
	[11,  0,  0,  0, 15],
	[ 0, 22,  0, 24,  0],
	[ 0,  0, 33,  0,  0],
	[ 0, 42,  0, 44,  0],
	[51,  0,  0,  0, 55],
]

Faylda quyidagi JSON saqlansin:

{
	[
		"catg": "catg1",
		"name": "prod1",
		"cost": "100"
	],
	[
		"catg": "catg2",
		"name": "prod2",
		"cost": "200"
	],
	[
		"catg": "catg3",
		"name": "prod3",
		"cost": "300"
	]
}

Fayl ma'lumotlari yordamida quyidagi HTML kodni shakllantiring va brauzerga yuboring:

<table>
	<tbody>
		<tr>
			<td>1</td>
			<td>catg1</td>
			<td>prod1</td>
			<td>100</td>
		</tr>
		<tr>
			<td>2</td>
			<td>catg2</td>
			<td>prod2</td>
			<td>200</td>
		</tr>
		<tr>
			<td>3</td>
			<td>catg3</td>
			<td>prod3</td>
			<td>300</td>
		</tr>
	</tbody>
</table>