Converts an integer into an octal string.
What Is decoct() in PHP?
Converts an integer into an octal string.
Its syntax is:
decoct(int $num): stringParameters:
$num— Accepted as int; required argument.
Return type: string. Octal output is a string; filesystem permission literals use a leading zero in PHP source.
Availability: Core PHP.
Example 1: Basic Usage
<?php
echo decoct(8);
Output:
10Octal output is a string; filesystem permission literals use a leading zero in PHP source.
Example 2: A Different Input
<?php
echo decoct(64);
Output:
100Octal output is a string; filesystem permission literals use a leading zero in PHP source.
Practical Example: Applying It in a Program
<?php
$permissions = [420, 493]; foreach ($permissions as $permission) { echo decoct($permission) . PHP_EOL; }
Output:
644
755Octal output is a string; filesystem permission literals use a leading zero in PHP source.
Important Behavior and Edge Cases
- Key behavior: Octal output is a string; filesystem permission literals use a leading zero in PHP source.
- Environment: Core PHP.
Comparison With Related Functions
| Function | Purpose |
|---|---|
decoct() | Converts an integer into an octal string. |
octdec() | octdec() parses octal text as a number; decoct() formats an integer as octal text. |
Common Beginner Mistakes
| Mistake | Correct Approach |
|---|---|
| Ignoring this behavior: Octal output is a string; filesystem permission literals use a leading zero in PHP source | Octal output is a string; filesystem permission literals use a leading zero in PHP source. |
Key Takeaways
- Converts an integer into an octal string.
- Octal output is a string; filesystem permission literals use a leading zero in PHP source.
- Core PHP.
Summary: Octal output is a string; filesystem permission literals use a leading zero in PHP source.