regex101: Match Tags in ExpressionEngine

{the literal { (123₁₀ / 173₈ / 7B₁₆)

Group 1(if '?{?)?

?repeats the group contents below at most once:

if the literal text if (case sensitive)

'?optionally matches the literal ' (39₁₀ / 47₈ / 27₁₆)

{?optionally matches the literal { (123₁₀ / 173₈ / 7B₁₆)

Group 2(.*?)

.*?any character (except for line terminators), repeated any number of times

_en-usthe literal text _en-us (case sensitive)

Group 3(.*?)

.*?any character (except for line terminators), repeated any number of times

}the literal } (125₁₀ / 175₈ / 7D₁₆)

Global pattern flags

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

g modifier: global. Finds all matches instead of stopping after the first

Search reference

Regular Expression

{(if '?{?)?(.*?)_en-us(.*?)}

Test String
New

{exp:channel:entries channel="" url_title="doors" limit="1"}

{exp:playa:children field="video_slider" var_prefix="videoslider"}
    {if {videoslider:total_results} != '0'}
        {if {videoslider:count}=='1'}
            {if '{video_slider_title_en-us}'!='NULL'}
                {video_slider_title_en-us}
            {if:else}
                Videos
            {/if}
        {/if}
        {if video_thumb != ''}
        {if:else}
            {exp:url_tube:thumbnail src="{videoslider:video_file}" width="334" height="150"}
        {/if}
        {if video_thumb_title != ''}
            {video_thumb_title}
        {if:else}
            {videoslider:title}
        {/if}
        {if {videoslider:count}=={videoslider:total_results}}
        {/if}
{/exp:playa:children}


{/exp:channel:entries}

Regular Expressions 101

Regular Expression

Test String
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Regular Expression

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Test String
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