PHP · Theory

Array count()

Theory

109/352

Array count()

Array count() (function) sits in lab hour. Vikram’s job is Vikram walking through Array count function. Write that first.

Keep Array count() (function) small. Vikram should finish Vikram walking through Array count function in a few lines, not a 40-line dump.

Without Array count() (function), lab hour gets messy and Vikram walking through Array count function is hard to trust.

Array count() (function) shows up in lab hour. Name Vikram walking through Array count function, not “a real-world scenario”.

Don’t do this with Array count() (function): skipping the failure case for Array count function. Interviewers spot it in ten seconds.

After Array count() (function), Vikram should still remember skipping the failure case for Array count function.

One breath for Array count() (function), then Vikram walking through Array count function, then skipping the failure case for Array count function. Sit down.

Exam tip

Say Array count() (function) in one breath, then one Array count function step Vikram can write from memory, then skipping the failure case for Array count function.

Example

<?php
$langs = ["PHP", "JS", "SQL"];
$langs[] = "Python";
foreach ($langs as $i => $lang) {
  echo "$i: $lang\n";
}

Array count() — pHP arrays are ordered maps. foreach walks key and value.

Short notes

DefArray count() (function) — Vikram uses it for Vikram walking through Array count function in lab hour.
RuleArray count() (function) → one Array count function step Vikram can write from memory.
RememberArray count() (function) + Apache/Nginx (lab hour).
UseArray count() (function) in lab hour (Vikram walking through Array count function).
TrapArray count() (function) — skipping the failure case for Array count function.
ExArray count() (function) → Vikram walking through Array count function.

PHP · Theory

Array count()

← All stacks

Theory

109/352

Array count()

Array count() (function) sits in lab hour. Vikram’s job is Vikram walking through Array count function. Write that first.

Keep Array count() (function) small. Vikram should finish Vikram walking through Array count function in a few lines, not a 40-line dump.

Without Array count() (function), lab hour gets messy and Vikram walking through Array count function is hard to trust.

Array count() (function) shows up in lab hour. Name Vikram walking through Array count function, not “a real-world scenario”.

Don’t do this with Array count() (function): skipping the failure case for Array count function. Interviewers spot it in ten seconds.

After Array count() (function), Vikram should still remember skipping the failure case for Array count function.

One breath for Array count() (function), then Vikram walking through Array count function, then skipping the failure case for Array count function. Sit down.

Exam tip

Say Array count() (function) in one breath, then one Array count function step Vikram can write from memory, then skipping the failure case for Array count function.

Example

<?php
$langs = ["PHP", "JS", "SQL"];
$langs[] = "Python";
foreach ($langs as $i => $lang) {
  echo "$i: $lang\n";
}

Array count() — pHP arrays are ordered maps. foreach walks key and value.

Short notes

DefArray count() (function) — Vikram uses it for Vikram walking through Array count function in lab hour.
RuleArray count() (function) → one Array count function step Vikram can write from memory.
RememberArray count() (function) + Apache/Nginx (lab hour).
UseArray count() (function) in lab hour (Vikram walking through Array count function).
TrapArray count() (function) — skipping the failure case for Array count function.
ExArray count() (function) → Vikram walking through Array count function.

Array count()

Example

Short notes

Questions

Array count()

Example

Short notes

Questions