hello_dolly_get_lyric()

Compatibility

Present in every tracked release (6.7.7 to 7.1.0), and compiles on PHP 7.4 through 8.6-dev.

Performance profile

How much work a call to hello_dolly_get_lyric() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.

Cost class

Trivial

Touches nothing outside its own arguments.

Scaling

Constant

No loop in the body: the same number of instructions runs whatever you pass in.

Instructions

11

Executed per call on PHP 8.5. The body compiles to 11.

Plugin surface

None

Nothing here hands control to plugin code.

Called by

1

1 place in core call this, so the cost is paid more often than your own code shows.

What it touches

• hookthird-party callbacksapply_filters()one call below hello_dolly_get_lyric()

Further down the call graph this can also reach query, option, cache, serialize and transient. Those are the worst case, several calls deep and usually down an error path, not what a normal call pays.

What one call costs · 1 distinct outcome

One number would be a lie: the work depends on which branch runs. These are every distinct cost hello_dolly_get_lyric() can have, taken from its control-flow graph on PHP 8.5.

Uses · 1

• wptexturize()Replaces common plain text characters with formatted entities.

Used by · 1

• hello_dolly()

Source code

View on Trac ↗View on GitHub ↗

21function hello_dolly_get_lyric() {22	/** These are the lyrics to Hello Dolly */23	$lyrics = "Hello, Dolly24Well, hello, Dolly25It's so nice to have you back where you belong26You're lookin' swell, Dolly27I can tell, Dolly28You're still glowin', you're still crowin'29You're still goin' strong30I feel the room swayin'31While the band's playin'32One of our old favorite songs from way back when33So, take her wrap, fellas34Dolly, never go away again35Hello, Dolly36Well, hello, Dolly37It's so nice to have you back where you belong38You're lookin' swell, Dolly39I can tell, Dolly40You're still glowin', you're still crowin'41You're still goin' strong42I feel the room swayin'43While the band's playin'44One of our old favorite songs from way back when45So, golly, gee, fellas46Have a little faith in me, fellas47Dolly, never go away48Promise, you'll never go away49Dolly'll never go away again";50 51	// Here we split it into lines.52	$lyrics = explode( "\n", $lyrics );53 54	// And then randomly choose a line.55	return wptexturize( $lyrics[ mt_rand( 0, count( $lyrics ) - 1 ) ] );56}

Changelog

Unchanged from 6.7.7 through 7.1.0.

1. 6.7.7
2. 6.8.8
3. 6.9.7
4. 7.0.4
5. 7.1.0

Signature, return type and hooks compared across 5 parsed releases.

About this page

Parsed data

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