✅ IsPlatformAvailable

Checks whether the specified platform requirement (such as php or ext-mbstring) is available in the current environment.

When to use

Use this in deployment scripts or runtime self-checks when you need to quickly determine whether a PHP extension or PHP version constraint is satisfied.

Signature

func (c *Composer) IsPlatformAvailable(platform string, version string) (bool, error)

Parameters

Parameter	Type	Description
platform	string	Platform name, e.g. php or ext-mbstring
version	string	Version constraint, e.g. >=7.4; may be an empty string to indicate no version constraint

Return value

• bool: true if the platform requirement is satisfied, otherwise false
• error: Returns an error when command execution or parsing fails during the check

Example

package main

import (
    "fmt"
    "log"

    "github.com/scagogogo/composer-skills/pkg/composer"
)

func main() {
    comp, err := composer.New(composer.DefaultOptions())
    if err != nil {
        log.Fatal(err)
    }

    // Check PHP version
    ok, err := comp.IsPlatformAvailable("php", ">=7.4")
    if err != nil {
        log.Fatal(err)
    }
    fmt.Println("PHP>=7.4 satisfied:", ok)

    // Check whether the extension is installed
    ok, err = comp.IsPlatformAvailable("ext-mbstring", "")
    if err != nil {
        log.Fatal(err)
    }
    fmt.Println("mbstring extension installed:", ok)
}

Advanced

• This method first calls CheckPlatform to look up the requirement; if the platform is not listed in composer.json, it directly runs composer check-platform <name>:<version> to probe
• It decides availability based on whether the output contains is not available
• If you only need to list all extensions, use GetExtensions