PHP · Theory

JSON Example

Theory

53/352

JSON Example

JSON Example is a PHP topic. In plain words you use it for api out for mobile in a JSON endpoint. Don’t start with a slogan — start with that picture.

Smallest example: json_encode($row, JSON_UNESCAPED_UNICODE). Type it, run it, and say what you see. If you can do that from memory, you know JSON Example.

From the example next to this theory — JSON Example: scores array, print avg, then high marks.

Trap — echo array without json_encode. Fix that before you talk about advanced PHP.

Viva — what is JSON Example? Then show json_encode($row, JSON_UNESCAPED_UNICODE). Then name the trap.

Exam tip

What is JSON Example? Show this: json_encode($row, JSON_UNESCAPED_UNICODE). Trap: echo array without json_encode.

Example

<?php
// JSON Example
$scores = [80, 90, 70];
$avg = array_sum($scores) / count($scores);
echo "avg=" . number_format($avg, 1) . "\n";
foreach ($scores as $s) {
  if ($s >= 80) echo "high: $s\n";
}

JSON Example: scores array, print avg, then high marks. Say the output.

Short notes

DefJSON Example — api out for mobile in a JSON endpoint.
Rulejson_encode($row, JSON_UNESCAPED_UNICODE)
Trapecho array without json_encode
Usea JSON endpoint

PHP · Theory

JSON Example

← All stacks

Theory

53/352

JSON Example

JSON Example is a PHP topic. In plain words you use it for api out for mobile in a JSON endpoint. Don’t start with a slogan — start with that picture.

Smallest example: json_encode($row, JSON_UNESCAPED_UNICODE). Type it, run it, and say what you see. If you can do that from memory, you know JSON Example.

From the example next to this theory — JSON Example: scores array, print avg, then high marks.

Trap — echo array without json_encode. Fix that before you talk about advanced PHP.

Viva — what is JSON Example? Then show json_encode($row, JSON_UNESCAPED_UNICODE). Then name the trap.

Exam tip

What is JSON Example? Show this: json_encode($row, JSON_UNESCAPED_UNICODE). Trap: echo array without json_encode.

Example

<?php
// JSON Example
$scores = [80, 90, 70];
$avg = array_sum($scores) / count($scores);
echo "avg=" . number_format($avg, 1) . "\n";
foreach ($scores as $s) {
  if ($s >= 80) echo "high: $s\n";
}

JSON Example: scores array, print avg, then high marks. Say the output.

Short notes

DefJSON Example — api out for mobile in a JSON endpoint.
Rulejson_encode($row, JSON_UNESCAPED_UNICODE)
Trapecho array without json_encode
Usea JSON endpoint

JSON Example

Example

Short notes

Questions

JSON Example

Example

Short notes

Questions