PHP · Theory

strlen()

Theory

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strlen()

strlen() is a PHP topic. In plain words you use it for a short strlen example in a college portal page. Don’t start with a slogan — start with that picture.

Smallest example: the smallest strlen example you can type. Type it, run it, and say what you see. If you can do that from memory, you know strlen().

From the example next to this theory — strlen() — explode splits strings; count works on arrays.

Trap — only saying “strlen” with no example. Fix that before you talk about advanced PHP.

Viva — what is strlen()? Then show the smallest strlen example you can type. Then name the trap.

Exam tip

What is strlen()? Show this: the smallest strlen example you can type. Trap: only saying “strlen” with no example.

Example

<?php
$s = "prep,pilot,php";
$parts = explode(",", $s);
echo strtoupper($parts[0]) . " count=" . count($parts);

strlen() — explode splits strings; count works on arrays.

Short notes

Defstrlen() — a short strlen example in a college portal page.
Rulethe smallest strlen example you can type
Traponly saying “strlen” with no example
Usea college portal page

PHP · Theory

strlen()

← All stacks

Theory

249/352

strlen()

strlen() is a PHP topic. In plain words you use it for a short strlen example in a college portal page. Don’t start with a slogan — start with that picture.

Smallest example: the smallest strlen example you can type. Type it, run it, and say what you see. If you can do that from memory, you know strlen().

From the example next to this theory — strlen() — explode splits strings; count works on arrays.

Trap — only saying “strlen” with no example. Fix that before you talk about advanced PHP.

Viva — what is strlen()? Then show the smallest strlen example you can type. Then name the trap.

Exam tip

What is strlen()? Show this: the smallest strlen example you can type. Trap: only saying “strlen” with no example.

Example

<?php
$s = "prep,pilot,php";
$parts = explode(",", $s);
echo strtoupper($parts[0]) . " count=" . count($parts);

strlen() — explode splits strings; count works on arrays.

Short notes

Defstrlen() — a short strlen example in a college portal page.
Rulethe smallest strlen example you can type
Traponly saying “strlen” with no example
Usea college portal page

strlen()

Example

Short notes

Questions

strlen()

Example

Short notes

Questions